In case you haven't been convinced that Floyd Mayweather Jr. won't pull out all the stops to show he's the champ, look no further than his ring entrance in tonight's fight against Canelo Alverez. The undefeated boxer came out with Justin Bieber doing his cool, rock star schtick and a shirtless Lil Wayne—who performed "A Milli." You can hate on Mayweather Jr., but come ooonnnnn, can't be mad at "A Milli."

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[via YouTube]