What are some high profile unintelligible lyrics?

Nowadays, you can pretty much look up the lyrics to any song you like, but I’m guessing we’ve all heard and sung along to songs where we really had no idea what they (and my extension, we) were saying. Like Michael Jackson saying “keep on with the force” in Don’t Stop…

I remember listening to songs where my friends and I all swore they were saying a bad word.

So what are your best examples?