Floyd Mayweather Jr. is a champion boxer and has tested his moves on "Dancing With the Stars." Now the man many consider the best pound-for-pound fighter in the world is preparing to drop the gloves and do some wrasslin.'

A $20 million payday awaits the undefeated WBC welterweight champion when he takes on Big Show as part of WWE's "WrestleMania XXIV" at Citrus Bowl in Orlando, Fla., on March 30.

"It's entertainment. You have a chance to just be you and do what you want to do," Mayweather said Monday after a chaotic Staples Center event that masqueraded as a news conference.