Actress Hilary Duff (L) poses with her sister Haylie at the third annual Cartier Loveday reception in Los Angeles June 18, 2008. REUTERS/Mario Anzuoni (UNITED STATES)

Sisters Haylie (L), and Hilary Duff arrive for the premiere of the film "War Inc." during the Tribeca Film Festival in New York April 28, 2008. REUTERS/Lucas Jackson (UNITED STATES)

Haylie Duff arrives for the premiere of the film "War Inc." during the Tribeca Film Festival in New York April 28, 2008. REUTERS/Lucas Jackson (UNITED STATES)

Sisters Haylie (L) and Hilary Duff arrive for the premiere of the film "War Inc." during the Tribeca Film Festival in New York April 28, 2008. REUTERS/Lucas Jackson (UNITED STATES)

Singer and actress Hilary Duff (R) and her sister, actress Haylie Duff, arrive as guests for the premiere of the film "1408" in Los Angeles, California June 12, 2007. REUTERS/Fred Prouser (UNITED STATES)

Singer and actress Hilary Duff (R) and her sister, actress Haylie Duff, arrive as guests for the premiere of the film "1408" in Los Angeles, California June 12, 2007. REUTERS/Fred Prouser (UNITED STATES)

Singer Hilary Duff (R) poses with her sister, actress Haylie Duff, as they arrive as guests at the third season screening of the HBO series 'Entourage" in Hollywood, California, April 5, 2007. REUTERS/Fred Prouser (UNITED STATES)

Hilary (R) and Haylie Duff attend the 17th Carousel of Hope Ball in Beverly Hills, California October 28, 2006. REUTERS/Mario Anzuoni (UNITED STATES)

Actresses and sisters Haylie (R) and Hilary Duff arrive at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Haylie Duff arrives at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Actresses and sisters Haylie (L) and Hilary Duff arrive at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Actresses and sisters Haylie (L) and Hilary Duff arrive at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Actresses and sisters Haylie (L) and Hilary Duff arrive at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Actresses and sisters Haylie (L) and Hilary Duff arrive at the New York premiere of "Material Girls" at the Chelsea West Cinema in New York City August 14, 2006. REUTERS/Eric Thayer (UNITED STATES)

Actresses Hilary (R) and Haylie Duff pose at the party for the launch of T-Mobile Sidekick 3 in Los Angeles June 20, 2006. REUTERS/Mario Anzuoni (UNITED STATES)

Singer Haylie Duff arrives at the US Weekly Hot Hollywood Awards party in Los Angeles, California April 26, 2006. The magazine celebrated Hollywood style by awarding film, television and music stars Style award at the event. REUTERS/Fred Prouser

Singer Haylie Duff arrives at the US Weekly Hot Hollywood Awards party in Los Angeles, California April 26, 2006. The magazine celebrated Hollywood style by awarding film, television and music stars Style award at the event. REUTERS/Fred Prouser

Actresses Hilary (R) and Haylie Duff pose at the 19th annual "Nickelodeon's Kids' Choice" awards at the UCLA's Pauley Pavillion in Los Angeles April 1, 2006. The award show gives kids the power to vote for their favorites in categories like movies, television, music and sports. The show airs live on Nickelodeon. REUTERS/Mario Anzuoni

Hilary Duff (R) and her sister Haylie Duff arrive at the Nickelodeon Kids' Choice Awards held in Los Angeles, California April 1, 2006. REUTERS/Lucas Jackson

Hilary Duff (R) and her sister Haylie Duff arrive at the Nickelodeon Kids' Choice Awards held in Los Angeles, California April 1, 2006. REUTERS/Lucas Jackson

Hilary (R) and Haylie Duff sit front row at the Antik Denim fashion show of the fall 2006 collection at Smashbox Studios in Culver City, California March 21, 2006. The five days Los Angeles Fashion Week for the fall of 2006 ends Thursday. REUTERS/Mario Anzuoni

Hilary (2nd L) and Haylie Duff (L) attend the Antik Denim fashion show of the fall 2006 collection at Smashbox Studios in Culver City, California March 21, 2006. The five days Los Angeles Fashion Week for the fall of 2006 ends Thursday. REUTERS/Mario Anzuoni

Hilary (L) and Haylie Duff sit front row at the Antik Denim fashion show of the fall 2006 collection at Smashbox Studios in Culver City, California March 21, 2006. The five days Los Angeles Fashion Week for the fall of 2006 ends Thursday. REUTERS/Mario Anzuoni

Hilary (R) and Haylie Duff sit front row at the Antik Denim fashion show of the fall 2006 collection at Smashbox Studios in Culver City, California March 21, 2006. The five days Los Angeles Fashion Week for the fall of 2006 ends Thursday. REUTERS/Mario Anzuoni

Actress Haylie Duff arrives at the premiere of DreamWorks pictures' "She's The Man" at the Mann Village theatre in Westwood, California March 8, 2006. The movie tells the story of Viola (Bynes) who impersonates her brother while he is on a two-week vacation in London. The film opens in the U.S. on March 17. REUTERS/Mario Anzuoni

Actress Haylie Duff arrives at the film premiere of DreamWorks pictures' "She's The Man" at the Mann Village theatre in Westwood, California March 8, 2006. The movie tells the story of Viola (Bynes) who impersonates her brother while he is on a two-week vacation in London. The film opens in the U.S. on March 17. REUTERS/Mario Anzuoni

Haylie Duff arrives for her sister Hilary's 18th birthday party held at the club "Mood" in the Hollywood section of Los Angeles, California on September 28, 2005. The multitalented Duff is best known from her role in Disney's Lizzie McGuire show although she is an accomplished film actress and recording artist who recently donated $250,000 to help Hurricane Katrina victims. REUTERS/Lucas Jackson

Hilary Duff's sister Haylie Duff(L) and actress Brook Burns arrive to celebrate Hilary Duff's 18th birthday party held at the club "Mood" in the Hollywood section of Los Angeles, California on September 28, 2005. The multitalented Duff is best known from her role in Disney's Lizzie McGuire show although she is an accomplished film actress and recording artist who recently donated $250,000 to help Hurricane Katrina victims. REUTERS/Lucas Jackson

Haylie Duff arrives at the 2005 Teen Choice Awards in Universal City, California, August 14, 2005. REUTERS/Chris Pizzello SSM

Haylie Duff arrives at the 2005 Teen Choice Awards at the Gibson Amphitheater in Universal City, Ca. August 14, 2005. REUTERS/Chris Pizzello

Hilary Duff (R), a cast member in the new film "The Perfect Man," poses with her sister Haylie at the premiere of the film at Universal Studios in Los Angeles June 13, 2005.

Hilary Duff, a cast member in the new film "The Perfect Man," poses with her sister Haylie at the premiere of the film in Los Angeles. Hilary Duff (R), a cast member in the new film "The Perfect Man," poses with her sister Haylie at the premiere of the film at Universal Studios in Los Angeles June 13, 2005. REUTERS/Chris Pizzello

Hilary Duff, a cast member in the new film "The Perfect Man", poses with her sister Haylie at the premiere of the film in Los Angeles. Hilary Duff (R), a cast member in the new film "The Perfect Man", poses with her sister Haylie at the premiere of the film at Universal Studios in Los Angeles June 13, 2005. REUTERS/Chris Pizzello

U.S. actress Haylie Duff and her sister Hilary Duff arrive for The Young Hot Hollywood Style Awards at the Element nightclub in Hollywood. U.S. actress Haylie Duff (L) and her sister Hilary Duff arrive for The Young Hot Hollywood Style Awards at the Element nightclub in Hollywood April 13, 2005. The party was hosted by "Us Weekly" magazine and Jessica Simpson. REUTERS/Lee Celano

Actress Andrea Bowen of the hit television show "Desperate Housewives" arrives at Nickelodeon's 18th annual Kids' Choice Awards at UCLA's Pauley Pavilion in Los Angeles, April 2, 2005. REUTERS/Michael Buckner MB

Actress Andrea Bowen of the hit television show "Desperate Housewives" arrives at Nickelodeon's 18th annual Kids' Choice Awards at UCLA's Pauley Pavilion in Los Angeles, April 2, 2005. REUTERS/Michael Buckner MB

Actress Haylie Duff arrives at Nickelodeon's 18th annual Kids' Choice Awards at UCLA's Pauley Pavilion in Los Angeles, April 2, 2005. REUTERS/Michael Buckner MB

Actress Haylie Duff arrives at Nickelodeon's 18th annual Kids' Choice Awards at UCLA's Pauley Pavilion in Westwood, April 2, 2005. REUTERS/Michael Buckner MB

Haylie Duff and Hilary Duff arrive for a party celebrating the opening of three Marc Jacobs stores in Los Angeles. Sisters Haylie Duff (L) and Hilary Duff arrive at a party celebrating the opening of three Marc Jacobs stores in the Melrose Place neighborhood in Los Angeles March 17, 2005. REUTERS/Lee Celano

Haylie Duff and Hilary Duff arrive at a party celebrating the opening of three Marc Jacobs stores in Los Angeles. Sisters Haylie Duff (L) and Hilary Duff arrive at a party celebrating the opening of three Marc Jacobs stores in the Melrose Place neighborhood in Los Angeles March 17, 2005. REUTERS/Lee Celano

Sisters Hilary Duff (R) and Haylie Duff model clothing at the 4th annual "ten" fashion show sponsored by GM in Hollywood February 22, 2005. REUTERS/Michael Buckner SSM/AT

Sisters Hilary Duff (R) and Haylie Duff arrive at the 4th annual GM ten fashion event in Hollywood, California February 22, 2005. REUTERS/Michael Buckner SSM/AT

Sisters Hilary Duff (R) and Haylie Duff arrive at the 4th annual GM ten fashion event in Hollywood February 22, 2005. REUTERS/Michael Buckner SSM/AT

Haylie Duff (L) and sister Hillary Duff arrive at the 4th annual GM ten fashion event in Hollywood February 22, 2005. REUTERS/Michael Buckner SSM/YH

Haylie and Hilary Duff arrive for a performance by Kanye West at House of Blues in West Hollywood, California. Haylie Duff (L) and her sister Hilary Duff arrive for a performance by hip-hop artist Kanye West at the House of Blues in West Hollywood, California February 9, 2005. West was on hand to help raise awareness and money for music education programmes in public schools. REUTERS/Jim Ruymen

Haylie Duff (L) and her sister Hilary Duff arrive for a performance by hip-hop artist Kanye West at the House of Blues in West Hollywood, California February 9, 2005. West was on hand to help raise awareness and money for music education programs in public schools. REUTERS/Jim Ruymen JR/JJ

Haylie Duff and Erik von Detten arrive at the 31st annual People's Choice Awards at the Pasadena Civic Center in Pasadena, California January 9, 2005. REUTERS/Lucy Nicholson SSM

Haylie Duff and Erik von Detten arrive at the 31st Annual People's Choice Awards at the Pasadena Civic Center in Pasadena, California January 9, 2005. REUTERS/Lucy Nicholson SSM

Actress Haylie Duff, sister of actress Hilary Duff, poses at the 16th Carousel of Hope Ball in Beverly Hills hosted by philanthropist Barabara Davis October 23, 2004. The funds raised from the biggest charity ball in Beverly Hills benefit the Barbara Davis Center for Childhood Diabetes which pursues diabetes research. REUTERS/Fred Prouser FP/acm

Actresses and sisters Hilary (R) and Haylie Duff appear in New York City, July 28, 2004. The sisters were judging the "Legs of a Goddess" contest for Gillette razors.

Actresses and sisters Hilary (R) and Haylie Duff pose for photographers in New York July 28, 2004. The sisters were judging the "Legs of a Goddess" contest for Gillette razors. REUTERS/Jeff Christensen JC

Actress and singer Haylie Duff appears in New York City, July 28, 2004. Duff was judging the "Legs of a Goddess" contest for Gillette razors with her sister Hilary. REUTERS/Jeff Christensen JC

Actresses and sisters Hilary (R) and Haylie Duff share a laugh as they appear in New York City, July 28, 2004. The sisters were judging the "Legs of a Goddess" contest for Gillette razors. REUTERS/Jeff Christensen JC

Actresses and sisters Hilary (R) and Haylie Duff appear in New York City, July 28, 2004. The sisters were judging the "Legs of a Goddess" contest for Gillette razors. REUTERS/Jeff Christensen JC

Haylie (L) and sister Hilary Duff pose as they arrive at the 46th annual Grammy Awards in Los Angeles February 8, 2004. REUTERS/Fred Prouser FP

Actresses Haylie Duff (L) and Ashlee Simpson present the Favorite
Siblings award at the fifth annual Family Television Awards in Beverly
Hills august 14, 2003. Simpson, is the sister of singer Jessica Simpson
and Duff, sister of actress Hilary Duff. The show honors outstanding
programming for family viewing and will be telecast August 25 on the WB
television network in the United States. REUTERS/Fred Prouser REUTERS

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