I take it you weren’t around to do the twist.
He didn't even write it. Didn't play a single instrument, and just barely passable singing. He's a novelty act with just that one schtick.
Now I'd agree that rappers don't belong in there either. But there are plenty of actual musicians that deserve to be in there more.
He's in there for one reason. RRHOF is woke as hell, and they wanted another black inductee. Simple as that.