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Lil Wayne is "proud" to be on the side of boxer Floyd Mayweather, Jr. 

During Mayweather's Saturday night match verses Canelo Alvarez at Las Vegas's MGM Grand Garden, Lil Wayne and Justin Bieber escorted the boxer to the ring. 

According to, "Weezy" also provided the music as Floyd entered by performing his track "A Milli." 

After Mayweather's 12-round victory over Alvarez, Lil Wayne took to Twitter, writing that he was "proud to be a part of the legacy of one of the greatest athletes that ever lived."  

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