Justin Bieber, Floyd Mayweather
Floyd Mayweather Jr. enters the ring alongside singer Justin Bieber. Al Bello/Getty Images

Before dominating Camelo Alvarez at the MGM Grand Arena in Las Vegas on Saturday night, boxer Floyd Mayweather got a pair of music heavyweights to escort him into the ring. None other than Lil Wayne and Justin Bieber were on hand deliver the welterweight champ to the match in a splashy display.

With a stoic Bieber on his left and a shirtless Wayne on his right, the trio walked through the arena while the rapper spat out some improvised rhymes -- Mayweather's nickname ("Money") was used liberally. Watch:

And Money is right, as Mayweather earned a cool $41.5 million to dissect Alvarez on his way to winning a majority decision before a riled-up crowd of 16,746. With the win, Mayweather's record is a perfect 45-0, with 26 KOs. Alvarez is now 42-1-1, with 30 KOs.

Apparently the action coming from the ring was so hot that Wayne didn't even need to put a shirt on.