Talk about a fine bromance!
The "Boyfriend" singer spent his weekend in Las Vegas supporting the professional boxer.
In a recent issue of V magazine, Bieber compared himself to the sports star saying, "Now that I'm on top, everyone wants to bring me down…Everyone's trying to tug at me and take my spot. Like Floyd Mayweather, he's the best boxer in the world. Now he is a champion. Every time he goes to a fight now, people are like, ‘He's going to lose this time.'" Mayweather was in fact crowned the winner in this weekend's match.