Dank or Paganini maybe.
I don't listen to rap (crap) music and I've never even heard of either of these two, so I don't think they're universally known.
Only tools refer to rap as crap. Why would you dismiss an entire genre of music?
It's just shouting words into a microphone and it requires no talent. Anyone could practice and become a rapper in a day, I'm just not impressed by that genre.