13-year-old Little League sensation MO'NE DAVIS played in the NBA All-Star Celebrity Game on Friday . . . and if you thought she'd be out of her element, that was NOT the case. Early in the game, Mo'ne drove to the basket . . . did a spin move that totally schooled comedian KEVIN HART and laid it in. She finished with four points. And Kevin is no slouch either. He was named MVP for the fourth year in a row . . . even though his team LOST. In his speech afterward, Kevin announced that he's retiring from the celebrity game, because he wants to go out on top.

(Here's video of Mo'ne's move. Here's video of her and Sarah Silverman talking about playing in the game. Here are some more highlights of Mo'ne and Kevin from the game. And here's Kevin accepting the MVP award.)