Billie Jean's Jeans

Alright, listen up, nimrod. This joke is funny because it's a play on words. You see, Michael Jackson had a hit song called "Billie Jean". The joke is that he found "Billie's Jeans" on his bed. Get it? It's funny because it sounds the same but it's different! You're probably too busy eating crayons to understand, but that's okay. Explain Bear still loves you.