Pee-Wee's Favorite Song

Alright, listen up, you chucklehead! You thought this joke was some kinda brain buster, huh? It's a play on words! "Beat it" is a song by Michael Jackson, but it also sounds like "beat it," as in, go away. It's a double whammy. Pee-wee Herman is known for his childlike personality so it's like he says "beat it" and not "go away". Get it now, genius?