Musicians Beck (L), Justin Bieber (C) and Joan Jett watch the Saint Laurent fall collection during a fashion show at the Hollywood Palladium in Los Angeles, California February 10, 2016. REUTERS/Mario Anzuoni

Recording artist Justin Bieber poses as he arrives for the Saint Laurent fall collection fashion show at the Hollywood Palladium in Los Angeles, California February 10, 2016. REUTERS/Mario Anzuoni

Singer Justin Bieber poses during Comedy Central Roast of Justin Bieber at Sony Studios in Culver City, California March 14, 2015. REUTERS/Kevork Djansezian

Canadian pop singer Justin Bieber arrives for amfAR's Cinema Against AIDS 2014 event in Antibes during the 67th Cannes Film Festival May 22, 2014. REUTERS/Benoit Tessier

Singer Justin Bieber arrives at the 2015 American Music Awards in Los Angeles, California November 22, 2015. REUTERS/David McNew

Canadian singer Justin Bieber holds the "Best Male" award during the MTV EMA awards at the Assago forum in Milan, Italy, October 25, 2015. REUTERS/Stefano Rellandini

Justin Bieber performs during the 2015 Wango Tango concert at the StubHub Center in Carson, California May 9, 2015. REUTERS/Kevork Djansezian

Singer Justin Bieber arrives at the 2015 MTV Video Music Awards in Los Angeles, California, August 30, 2015. REUTERS/Danny Moloshok

Singer Justin Bieber performs on NBC's 'Today' show in New York November 18, 2015. REUTERS/Brendan McDermid

Tattoos are seen on the arms of Canadian singer, songwriter and actor Justin Bieber at a musical event hosted by Calvin Klein Jeans in Hong Kong, June 11, 2015. REUTERS/Bobby Yip

Canadian singer Justin Bieber arrives for the Metropolitan Museum of Art Costume Institute Gala 2015 celebrating the opening of "China: Through the Looking Glass," in Manhattan, New York May 4, 2015. REUTERS/Andrew Kelly

Singer Justin Bieber (L) and recording artist Usher pose at the premiere of the documentary "Justin Bieber's Believe" in Los Angeles, California December 18, 2013. REUTERS/Mario Anzuoni

Singer Justin Bieber (L) takes his shirt off as he and model Lara Stone introduce an act during the "Fashion Rocks 2014" concert in the Brooklyn borough of New York September 9, 2014. REUTERS/Carlo Allegri

Canadian pop singer Justin Bieber gestures at a beach as he takes a break in a resort in Punta Chame, on the outskirts of Panama City January 27, 2014. REUTERS/Carlos Jasso

Singer Justin Bieber leaves a hotel in central London March 9, 2013. REUTERS/Olivia Harris

Justin Bieber performs at the Jingle Ball 2012 in Atlanta, Georgia December 12, 2012. REUTERS/Tami Chappell

Pop star Justin Bieber arrives at the 40th American Music Awards in Los Angeles, California November 18, 2012. REUTERS/Jonathan Alcorn

Justin Bieber performs "As Long As You Love Me" at the 40th American Music Awards in Los Angeles, California, November 18, 2012. REUTERS/Danny Moloshok

Singer Justin Bieber speaks on stage to introduce singer Carly Rae Jepsen (not pictured) at the 2012 Wango Tango concert at the Home Depot Center in Carson, California May 12, 2012. REUTERS/Mario Anzuoni

Canadian singer Justin Bieber arrives at the Cannes festival palace to attend the NRJ Music Awards in Cannes January 28, 2012. REUTERS/Eric Gaillard

Musician Justin Bieber walks on the court as the Toronto Raptors play the Indiana Pacers during the second half of their NBA basketball game in Toronto December 28, 2011. REUTERS/Devaan Ingraham

Singer Justin Bieber arrives for the TeenChoice 2012 awards in Los Angeles July 22, 2012. REUTERS/Phil McCarten

Singer Justin Bieber (C) dances with pop group LMFAO as they perform at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Justin Bieber performs on NBC's "Today" show in New York November 23, 2011. REUTERS/Brendan McDermid

Canadian singer Justin Bieber poses for photographers before switching on the Christmas lights and performing at the Westfield shopping centre in west London November 7, 2011 REUTERS/Paul Hackett

Details of singer Justin Bieber's outfit is pictured as he arrives at the 2011 ESPY Awards in Los Angeles, California, July 13, 2011. REUTERS/Danny Moloshok

Singer Justin Bieber's shoes are pictured as he arrives at the 2011 ESPY Awards in Los Angeles, California, July 13, 2011. REUTERS/Danny Moloshok

Singer Justin Bieber poses backstage at the 53rd annual Grammy Awards in Los Angeles, California February 13, 2011. REUTERS/Mario Anzuoni

Singer Justin Bieber of Canada shows off an NBA Championship ring belonging to Los Angeles Lakers executive vice president Jeanie Buss during the NBA game between the Los Angeles Lakers and the Houston Rockets in Los Angeles, California, October 26, 2010. REUTERS/Lucy Nicholson

Singer Justin Bieber poses for a portrait in New York, June 3, 2010. REUTERS/Lucas Jackson