After portraying a fighter in his famous 1991 “Mama Said Knock You Out” video, LL Cool J will help tell the story of a champ of the ring.

Mayweather, the Floyd Mayweather documentary airs on CBS April 27 at 8pm EST just one week before the May Day: Mayweather vs. Guerrero boxing match. Predictably, the documentary will give viewers a look into the life of boxing sensation Floyd Mayweather.

“Mayweather is an honest portrayal of the controversial and charismatic best pound-for-pound boxer in the world.” says producer Ross Greenburg. Mayweather’s latest opponent Robert “The Ghost” Guerrero will also be highlighted in the Mayweather doc.

Not only will Queens, New York veteran emcee-turned-actor LL Cool J be narrating the Mayweather documentary, he will be premiering one of his tracks off his upcoming album Authentic entitled “We’re The Greatest” in it. It will feature guitar sounds by the legendary Eddie Van Halen.

In regards to the new record LL told, “It’s not necessarily about me and Eddie [Van Halen], per se. It’s about people that kinda get tossed aside, forgotten about, kicked down, and then they make a comeback in life and they regain that ground that they had lost, and then some.”

LL Cool J‘s Authentic will release on April 30.

RELATED: LL Cool J f. Monica – “Closer” [AUDIO]