God, I've been waiting since forever for this clip to finally show up on YouTube.
From the early 90s, it's Tom Petty and Heartbreakers doing "You Don't Know What It's Like" on SNL.
With guest drummer Dave Grohl, late of some band whose name escapes me that changed music.
Does he kick, or what? Seriously -- the kid plays about a thousand times harder than any drummer Petty's ever had, and what a pleasure to see it.