If you're not already aware, Sleater-Kinney guitarist/vocalist Carrie Brownstein also doubles as an actor, starring most notably in Portlandia.
Her Portlandia co-star Fred Armisen joined the band on stage in New York on Sunday night, where they collectively covered the B-52s' 'Rock Lobster' and generally had a hell of a time while doing it.
Cowbells, dolphin mating calls.. you name it, they've got it.
Watch it below: