Singer Lady Gaga performs at the iHeartRadio Music Festival at the MGM Grand Garden Arena September 24, 2011 in Las Vegas, Nevada.
President of the Jury Steven Spielberg attends the Jury Press Conference during the 66th Annual Cannes Film Festival at the Palais des Festivals on May 15, 2013 in Cannes, France.
Singer Beyonce Knowles attends a screening of 'I AM...World Tour' at the School of Visual Arts Theater on November 21, 2010 in New York City.
Director Madonna attends the 'W.E.' UK film premiere at the Odeon Kensington on January 11, 2012 in London, England.
Musician Taylor Swift arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.
Jon Bon Jovi, Richie Sambora, Tico Torres and David Bryan attends as Bon Jovi are announced to headline the AEG Live: Hyde Park 2013 gigs at Mandarin Oriental Hyde Park on January 23, 2013 in London, England.
Roger Federer celebrates match point during his Gentlemen's Singles second round match against Fabio Fognini of Italy on day three of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 27, 2012.
Justin Bieber performs at Alcatraz on June 2, 2012 in Milan, Italy.
Actress and talk show host Ellen DeGeneres attends the Postal Service dedication of their new Animal Rescue: Adopt A Shelter Pet Stamp on April 30, 2010 at the Academy Of Television Arts & Sciences in North Hollywood, California.
Actor Hugh Jackman attends the 'Les Miserables' World Premiere at the Odeon Leicester Square on December 5, 2012 in London, England.
Jennifer Lopez attends a screening of 'Parker' hosted by FilmDistrict, The Cinema Society, L'Oreal Paris and Appleton Estate at MOMA on January 23, 2013 in New York City.
Rihanna attends as the Rihanna for River Island collection is launched at the Oxford Street River Island store on March 4, 2013 in London, England.
Chris Martin and Jonny Buckland of Coldplay perform live for fans at Allianz Stadium on November 17, 2012 in Sydney, Australia.
Tiger Woods of the United States reacts to making a putt for birdie on the sixth hole during Round One of the 113th U.S. Open at Merion Golf Club on June 13, 2013 in Ardmore, Pennsylvania.
LeBron James #6 of the Miami Heat answers questions as he celebrates after defeating the San Antonio Spurs 95-88 to win Game Seven of the 2013 NBA Finals at AmericanAirlines Arena on June 20, 2013 in Miami, Florida.
Producer Simon Cowell arrives at Fox's 'The X Factor' Season Finale - Night 2 at CBS Televison City on December 20, 2012 in Los Angeles, California.
Singer Katy Perry arrives at the premiere of 'Katy Perry: Part Of Me' held at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California.
David Beckham attends a forum for Chinese Super League at Hilton Hotel on June 19, 2013 in Nanjing, Jiangsu Province of China.
APRIL 19: Robert Downey Jr attends Marvel Avengers Assemble European Premiere at Vue Westfield on April 19, 2012 in London, England. on April 19, 2012 in London, England.
Leonardo DiCaprio attends the TAG Heuer Host 2013 Monaco Grand Prix Party on May 25, 2013 in Monaco, Monaco.
Presenter Tyler Perry onstage at Spike TV's 'Eddie Murphy: One Night Only' at the Saban Theatre on November 3, 2012 in Beverly Hills, California.
Channing Tatum attends 'White House Down' New York Premiere at Ziegfeld Theater on June 25, 2013 in New York City.
Kobe Bryant #24 of the Los Angeles Lakers in action against the Golden State Warriors at Oracle Arena on March 25, 2013 in Oakland, California.
Actor Dwayne Johnson arrives at the Premiere of Paramount Pictures' 'G.I. Joe: Retaliation' at TCL Chinese Theatre on March 28, 2013 in Hollywood, California.