Wal-Mart and Michael Jackson Similarity

Alright, listen up, you cotton-headed ninny muggins! This joke is dark. It's saying Wal-Mart has little boy's pants on sale for half off, and then it connects that to Michael Jackson, implying that he also liked little boys. Get it? It's funny 'cause it's messed up. You probably shop at Wal-Mart, don't you?