Singer Justin Bieber and rapper Curtis "50 Cent" Jackson enter the ring with Floyd Mayweather Jr. before Mayweather takes on Miguel Cotto during their WBA super welterweight title fight at the MGM Grand Garden Arena on May 5, 2012, in Las Vegas.
Actress Christine Taylor sits with her husband, actor Ben Stiller, and hip-hop artist Kanye West as they watch the New York Knicks host the Miami Heat in Game Three of the Eastern Conference Quarterfinals in the 2012 NBA Playoffs on May 3, 2012, at Madison Square Garden in New York.
Actor and comedians Will Arnett and Louis C.K. attend Game Two of the Eastern Conference Semifinals between the New York Rangers and the Washington Capitals during the 2012 NHL Stanley Cup Playoffs at Madison Square Garden on April 30, 2012, in New York.
Actor Will Smith and his wife, Jada Pinkett Smith, attend the final match of the Madrid Masters between Czech Tomas Berdych and Swiss Roger Federer on May 13, 2012, at the Magic Box sports complex in Madrid.
Actor Denzel Washington, right, talks to Los Angeles Lakers players Pau Gasol, left, and Darius Morris, center, before their NBA basketball game against the San Antonio Spurs, April 17, 2012, in Los Angeles.
Actor Eric Stonestreet cheers on the Los Angeles Kings as the Kings take on the St. Louis Blues in Game Three of the Western Conference Semifinals during the 2012 NHL Stanley Cup Playoffs at Staples Center on May 3, 2012, in Los Angeles.
Actor Billy Crystal attends Game Six of the Western Conference Quarterfinals between the Memphis Grizzlies and Los Angeles Clippers during the 2012 NBA Playoffs at Staples Center on May 11, 2012, in Los Angeles.
Actor Daniel Dae Kim throws out a first pitch before a baseball game between the Philadelphia Phillies and the New York Mets, May 7, 2012, in Philadelphia.
Vince Vaughn attends New York Rangers vs New Jersey Devils playoff game at Madison Square Garden on May 16, 2012, in New York.
Actor Will Smith looks at the scoreboard in the second half of an NBA basketball game between the Philadelphia 76ers and the New Jersey Nets, April 13, 2012, in Philadelphia. The Nets won, 95-89.
Singer Keith Urban, left, and wife, actress Nicole Kidman watch the Nashville Predators play the Detroit Red Wings in the first period of Game 5 of a first-round NHL hockey playoff series on April 20, 2012, in Nashville, Tenn.
Actor Leonardo DiCaprio, right, watches in the second half of an NBA basketball game between the New Orleans Hornets and the Los Angeles Lakers in New Orleans, April 9, 2012. The Lakers won, 93-91.
Head coach George Karl of the Denver Nuggets reacts alongside actor Jack Nicholson while taking on the Los Angeles Lakers in Game Seven of the Western Conference Quarterfinals in the 2012 NBA Playoffs on May 12, 2012, at Staples Center in Los Angeles.
Actor Ashton Kutcher reacts as he watches the Los Angeles Lakers play the Oklahoma City Thunder during the second half in Game 4 of an NBA basketball playoffs Western Conference semifinal, May 19, 2012, in Los Angeles. The Thunder won, 103-100.
Actor Gary Sinise acknowledges the crowd after throwing the first pitch before a baseball game between the Oakland Athletics and Texas Rangers on May 16, 2012, in Arlington, Texas.
Actor Billy Crystal reacts after Los Angeles Clippers guard Nick Young hit a three point shot during the first half in Game 3 of an NBA basketball playoffs Western Conference semifinal against the San Antonio Spurs, May 19, 2012, in Los Angeles.
Actor Cuba Gooding Jr. celebrates during the third period of Game 3 of the NHL hockey Stanley Cup Western Conference finals between the Los Angeles Kings and the Phoenix Coyotes, May 17, 2012, in Los Angeles. The Kings won, 2-1.
Actor Gerard Butler watches the Los Angeles Lakers play the Oklahoma City Thunder during overtime in their NBA basketball game, April 22, 2012, in Los Angeles. The Lakers won, 114-106, in double overtime.
Soccer player David Beckham, left, touches his son Romeo's with a towel after he was given a puck that went into the crowd as they watch the Los Angeles Kings play the Phoenix Coyotes in Game 4 of the NHL hockey Stanley Cup Western Conference finals, May 20, 2012, in Los Angeles. The Coyotes won, 2-0.
Actor Ashton Kutcher reacts as he watches the Los Angeles Lakers play the Oklahoma City Thunder during overtime in their NBA basketball game, April 22, 2012, in Los Angeles. The Lakers won, 114-106, in double overtime.
Actor Jack Nicholson waves as the crowd cheers when the scoreboard reads "Happy Birthday Jack Nicholson," during the Los Angeles Lakers and the Oklahoma City Thunder NBA basketball game in Los Angeles, April 22, 2012. The Lakers won,114-106, in double overtime.
Actress Salma Hayek attends an NBA basketball game as the San Antonio Spurs take on the Los Angeles Lakers, April 17, 2012, in Los Angeles.
Actress Charlize Theron, right, and her mother, Gerda Jacoba Aletta, attend an NBA basketball game as the San Antonio Spurs take on the Los Angeles Lakers, April 17, 2012, in Los Angeles.
Actor Simon Baker watches during the first half of an NBA basketball game between the Los Angeles Lakers and the Dallas Mavericks, April 15, 2012, in Los Angeles.
Actress Mariska Hargitay watches the game between the San Antonio Spurs and Los Angeles Lakers at Staples Center on April 17, 2012, in Los Angeles.