Floyd Mayweather Jr. retired last fall as an undefeated boxing legend.

But the champ might have just gotten knocked out by one lil' girl's overwhelming cuteness.

In a recent Instagram video posted by Lil' Kim, Mayweather is seen playing around with the rapper's cute two-year-old daughter, Royal Reign, and the rapport between them is absolutely adorable.

Watch as the former champ dubs Royal as "The Princess Bee" as a nod of reference and respect to her mama, "The Queen Bee," before giving her a high five and chasing her around the room.

Also, peep the nice words that Kim had for her longtime friend within the IG caption.

Aww! Royal's smile and laugh are just too cute.

Kim also captured these great still shots between the boxing legend and her baby girl.

We dare you to find anything cuter than this on the internet today.

BET Sports News — Get the latest news and information about African-Americans in sports, including weekly recaps, celebrity news and photos of your favorite Black athletes.