Watch Dinosaur Jr. Blast Through “Goin Down” On Conan

J Mascis is getting awfully comfortable on late-night TV. The night before last, Mascis competed against two full-time stand-up comics on @Midnight, Comedy Central’s late night game show, and he defeated both of them at their own game. But he isn’t going to give up on playing woozy fuzz-guitar anthems anytime soon. Last night, Mascis was back on basic cable, this time with his band. Dinosaur Jr. were the musical guests on Conan, where they cranked their way through “Goin Down,” one of the singles from Give A Glimpse Of What Yer Not, their latest bruised and satisfying reunion album. They brought along a gigantic Marshall stack and a second guitarist who appeared out of nowhere to play a quick psychedelic solo at the end. Who was that guy? Anyone know? Watch the performance below.

Give A Glimpse Of What Yer Not is out now on Jagjaguwar.