Justin Bieber celebrates with Floyd Mayweather

Justin Bieber joined Floyd Mayweather ringside after last night's world title fight. Credit: Reuters

Justin Bieber was among a cast of A-list celebrities attending Floyd Mayweather's world title fight against Saul Alvarez in Las Vegas, and the pop star joined the American boxing champion after his win.


Mayweather wins 'richest' fight

American Floyd Mayweather defeated Mexico's Saul Alvarez on a majority decision in what could be the highest grossing fight yet in Las Vegas.