A view of the table where Princess Caroline of Hanover is to be seated in the "salle des etoiles" is seen at the Monte Carlo Sporting for the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A general view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A general view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A view of the table decorations in the "Salle Des Etoiles" (Stars Room) at the Monte Carlo Sporting is seen during the Bal de la Rose event in Monaco March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Prince Emanuele Filiberto di Savoia arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Pierre Casiraghi (R) and Beatrice Borromeo arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Prince Albert II of Monaco and his sister Princess Caroline of Hanover pose as they arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Charlotte Casiraghi, Princess Caroline of Hanover's daughter, arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Charlotte Casiraghi, Princess Caroline of Hanover's daughter, arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Japanese fashion designer Kenzo Takada poses as he arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

German designer Karl Lagerfeld poses as he arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

German designer Karl Lagerfeld poses as he arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

(L to R) Charlotte Casiraghi, German designer Karl Lagerfeld, Princess Caroline of Hanover, Prince Albert II of Monaco, Paola Marzotto, Pierre Casiraghi and Beatrice Borromeo pose as they arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Pierre (L) and Charlotte Casiraghi, Princess Caroline of Hanover's children, arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Pierre (L) and Charlotte Casiraghi, Princess Caroline of Hanover's children, arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Charlotte Casiraghi, Princess Caroline of Hanover's daughter, arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Princess Caroline of Hanover arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Prince Albert II of Monaco and his sister Princess Caroline of Hanover arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Prince Albert II of Monaco and his sister Princess Caroline of Hanover pose as they arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Princess Caroline of Hanover (R) poses with German designer Karl Lagerfeld (C) and her daughter Charlotte (L) as they arrive at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

Charlotte Casiraghi, Princess Caroline of Hanover's daughter, arrives at the Bal de la Rose in Monte Carlo March 28, 2015. The Bal de la Rose is a traditional annual charity event in aid of Foundation Princess Grace. REUTERS/Eric Gaillard 

A Monaco's policeman walks past the Princess Grace Hospital in Monaco December 10, 2014. Princess Charlene of Monaco was admitted to the Princess Grace Hospital where she is expected to deliver twins, according to French media on Wednesday. Prince Albert II of Monaco and his wife Charlene announced that she was pregnant in May, in a statement by the Royal Palace specifying the birth would happen at the end of the year. REUTERS/Eric Gaillard (MONACO - Tags: ROYALS ENTERTAINMENT) 

Media stand in front of the Princess Grace Hospital in Monaco December 10, 2014. Princess Charlene of Monaco was admitted to the Princess Grace Hospital where she is expected to deliver twins, according to French media on Wednesday. Prince Albert II of Monaco and his wife Charlene announced that she was pregnant in May, in a statement by the Royal Palace specifying the birth would happen at the end of the year. REUTERS/Eric Gaillard (MONACO - Tags: ROYALS ENTERTAINMENT MEDIA) 

A general view shows the Princess Grace Hospital in Monaco December 10, 2014. Princess Charlene of Monaco was admitted to the Princess Grace Hospital where she is expected to deliver twins, according to French media on Wednesday. Prince Albert II of Monaco and his wife Charlene announced that she was pregnant in May, in a statement by the Royal Palace specifying the birth would happen at the end of the year. REUTERS/Eric Gaillard (MONACO - Tags: ROYALS ENTERTAINMENT) 

A Monaco police car enters the Princess Grace Hospital in Monaco December 10, 2014. Princess Charlene of Monaco was admitted to the Princess Grace Hospital where she is expected to deliver twins, according to French media on Wednesday. Prince Albert II of Monaco and his wife Charlene announced that she was pregnant in May, in a statement by the Royal Palace specifying the birth would happen at the end of the year. REUTERS/Eric Gaillard (MONACO - Tags: ROYALS ENTERTAINMENT) 

Actor Dick Van Dyke accepts the Prince Rainier III Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Actor Dick Van Dyke accepts the Prince Rainier III Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco (R) presents actor Dick Van Dyke with the Prince Rainier III Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Actor Dick Van Dyke accepts the Prince Rainier III Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Actor Dick Van Dyke dances while accepting the Prince Rainier III Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT TPX IMAGES OF THE DAY ROYALS) 

Prince Albert II of Monaco (C) presents actor Dick Van Dyke (L) with the Prince Rainier III Award, as comedian Conan O'Brien applauds in the background, at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Prince Albert II of Monaco applauds on stage at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Comedian Conan O'Brien speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Comedian Conan O'Brien speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Geena Davis speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Actress Geena Davis speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Director Adam Shankman speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Prince Albert II of Monaco (C) watches a presentation at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT ROYALS) 

Actor Oscar Isaac accepts the Princess Grace Statue Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Classical ballet dancer David Hallberg accepts the Princess Grace Statue Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT SOCIETY) 

Classical ballet dancer David Hallberg accepts the Princess Grace Statue Award at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT SOCIETY) 

Actress Jane Lynch speaks at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actor George Hamilton poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Anne Jeffreys acknowledges the audience at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Guests are pictured at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actor George Hamilton and actress Alana Stewart pose at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Jane Lynch fixes her hair at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Alana Stewart poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Jane Lynch poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Tippi Hedren poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Tippi Hedren poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

Actress Geena Davis poses at the 2014 Princess Grace Awards gala at the Beverly Wilshire Hotel in Beverly Hills, California October 8, 2014. The Princess Grace Foundation-USA is a non-profit foundation dedicated to help emerging talent in theater, dance, and film by awarding grants. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)