England vs Germany. Ali vs Frazier. Coe vs Ovett. Hunt vs Lauder.
None of these have anything on the world's real biggest rivalry: Animal vs Dave Grohl.
Who is the best drummer? It's a question that's been debated for many years, but now - finally - the two titans of rock have come together to face off against each other.
The drum battle featured at the end of episode 9 of The Muppets' latest TV show, the premiere of which went out in Canada last night.
Animal has previously faced off against Blink 182's Travis Barker on Jimmy Kimmell in 2012 with Animal - sort of - emerging triumphant, but who wins this time? Watch the video and find out.