Michael Jackson's Chemical Element

Alright, listen up, numbskull. This joke is banking on the fact that you know Michael Jackson had this signature "hee hee" thing he did in his songs. And helium? That's a gas that makes your voice sound all squeaky and funny. So, get it? Hee hee + helium = a silly, squeaky Michael Jackson. You probably think helium is only used for balloons, but it's also the second most abundant element in the universe. You wouldn't know anything about the universe, would you?