Justin Bieber: Floyd Mayweather, Jr. Boxing Victory Celebration!

Justin Bieber poses for a picture with boxer Floyd Mayweather, Jr. at the Cotto vs. Mayweather, Jr. match held at the MGM Grand Garden Arena on Saturday (May 5) in Las Vegas.

The 18-year-old entertainer watched as Floyd defeated Miguel Cotto for the World Boxing Association’s super welterweight title championship! Justin stuck around after the fight to celebrate with Floyd, Lil’ Wayne and 50 Cent. Congratulations, Floyd!

“@FloydMayweather Hard Work & Dedication . congrats champ. glad i could be a part of it” Justin tweeted at Floyd after the big boxing fight.

In case you missed it, check out Justin‘s latest music video for his song “Boyfriend”.

10+ pictures inside of Justin Bieber celebrating Floyd Mayweather, Jr.‘s victory…