Justin Bieber: Floyd Mayweather's Daughter Is A Fan!

Floyd's daughter Iyanna goes to matches to watch her dad, but most of the time she's just looking at the Biebs.

It shouldn't have been that much of surprise that Justin Bieber and Lil Wayne showed up to support Floyd Mayweather during his big fight against Saul "Canelo" Alvarez on Saturday night — after all the music stars were in the ring during Floyd's May 2012 against Miguel Cotto as well.

Weezy rapped his 2008 hit "A Milli," while Bieber helped to escort the undefeated boxing champ to the ring at the MGM Grand in Las Vegas before he beat Alvarez in a 12-round decision. The star-studded entrance was a similar to the start of Floyd's 2012 fight with Wayne and JB in two; the only thing missing was Mayweather's former buddy 50 Cent.

MTV News hooked up with Fif last year, back when things were all good and he explained to us Beiber and Wayne's connection to Floyd.

"Justin is also a Floyd fan. They love the sport. A lot of people like it and haven't actually made contact or received anything to make them feel like it was cool or comfortable enough for them to come," 50 said last year. "When it actually happens and it goes down like that, it feels good. When they get a chance to see different genres, different people, everybody's excited."

Like just about every other teenage girl, Floyd's daughter Iyanna is a fan — she even tweeted the Biebs in excitement the day of the fight. "@Justinbiber can't wait to see you tonight," she wrote.

"Floyd's daughter, Yaya, she saw half the fight, the other half she was looking at Bieber," Fif said last year of about the Cotto match.

50, who has been promoting boxing matches with his SMS Promotions company, originally had plans to start a promotion outfit with Mayweather's The Money Team in 2012, but their business and friendship later fell apart. He wasn't present in Floyd's corner and didn't tweet about the fight either; instead he's been promoting his Big Apple Boxing event on Monday (September 16) in Queens, New York.