Spice Girls Melanie Brown (R), Geri Halliwell (2nd L) and Emma Bunton arrive for the premiere of the musical 'Viva Forever!', based on their music, in central London. REUTERS/Toby Melville
Actor Martin Freeman and his partner Amanda Abbington arrive for the royal premiere of the film 'The Hobbit - An Unexpected Journey' in central London. REUTERS/Luke MacGregor
Bridgit Mendler performs at the Jingle Ball 2012 in Atlanta, Georgia. REUTERS/Tami Chappell
Roger Daltrey (L) and Pete Townshend of The Who perform during the '12-12-12' benefit concert for victims of Superstorm Sandy at Madison Square Garden in New York. REUTERS/Lucas Jackson
Actress Heather Locklear and cast member Ava Sambora (R) arrive at the premiere of the movie 'This is 40' at Grauman's Chinese Theatre in Hollywood, California. REUTERS/Patrick T. Fallon
Jay Leno (L) and actor Hugh Jackman laugh during ceremonies honouring Jackman with a star on the Hollywood Walk of Fame in Hollywood. REUTERS/Jonathan Alcorn
Kylie Minogue performs at the Nobel Peace Prize Concert in Oslo. REUTERS/Suzanne Plunkett
Singers Bon Jovi (L) and Bruce Springsteen perform during the '12-12-12' concert in New York. REUTERS/Lucas Jackson
Actress Jessica Alba poses at the announcement of nominations for the 70th annual Golden Globe Awards in Beverly Hills, California. REUTERS/Phil McCarten
Justin Bieber performs at the Jingle Ball 2012 in Atlanta, Georgia. REUTERS/Tami Chappell
Actor Samuel L. Jackson gestures as he attends the 'Django Unchained' premiere in New York. REUTERS/Andrew Kelly