Floyd Mayweather Jr. vs. Ricky Hatton, billed as Undefeated, was a professional boxing match that took place on December 8, 2007, at the MGM Grand Garden Arena in Las Vegas, between reigning WBC and The Ring welterweight champion Floyd Mayweather Jr. and reigning The Ring light welterweight champion Ricky Hatton.

[1] In attendance were celebrities such as Denzel Washington, Fábio Coentrão, Diego Milito, Simon Bird, Bruce Willis, Sylvester Stallone, Angelina Jolie, Mario Lopez, Brad Pitt, Wesley Snipes, Will Ferrell, Gwen Stefani, Jimmy Kimmel, Tiger Woods, Jude Law, Jamie Hunt, David Lochery, footballer David Beckham, Kid Rock, fellow Dancing with the Stars alums, Wayne Newton, Mark Cuban and season 5 winner Hélio Castroneves and Karina Smirnoff, who is Mayweather's dance partner.

Shortly before the start of the match, the Hatton fans also repeatedly booed the American national anthem, drawing large criticism post-fight.

[7] In round six, referee Joe Cortez took a point away from Hatton after he threw punches at the back of Mayweathers' head when he was forced under the top rope.

[8] Hatton became angry at the referee's decision to deduct a point from him and turned his back on him in frustration, shaking his bottom at Mayweather.

Mayweather wasted no time jumping on him again, landing a flurry of punches, including another left hook that sent Hatton staggering backward and down again.

Mayweather went on to appear at World Wrestling Entertainment (WWE)'s No Way Out pay-per-view on February 17, 2008 in Las Vegas, Nevada, where he was involved in a storyline physical altercation with Big Show, which led to a match at WrestleMania XXIV.