Here Are Floyd Mayweather's New BFFs Justin Bieber And Lil Wayne Walking Him To The Ring Last Night

And a circus led the way. Because of course.

Every champ needs a theme song, and on Saturday night, Floyd Mayweather Jr.'s became "Believe Me."

Prior to his bout with Marcos Maidana, Money May was joined on his walk to the ring by Lil Wayne and Justin Bieber. The nearly three-minute stroll included Weezy's new Drake-assisted track, "Believe Me," booming through the MGM Grand sound system, as Tunechi gave his first performance of the Tha Carter V single.

In addition to Wayne and Biebs, Mayweather's entrance included a bunch of circus performers ‒ from jugglers to clowns.

The fellas seem to have forged a nice little bond, as this is the fourth fight in a row that the Tunechi has joined Money during his entrance, and the third time for Biebs. Bieber also posted some flicks of the night on his Instagram.

Mayweather went on to defeat Maidana and improve his record to 46-0.