Jimmy Fallon starts this off with Darcy Lynne's puppets from America'a Got Talent, then Miley follows up with a bunch of splits during Portugal. The Man. You think that's great? It gets better... Jimmy Kimmel sings Violet by Courtney Love, and Miley responds with Once in a Lifetime by Talking Heads.
Who wants to do a Lip Sync Battle? Sounds like the best party ever.