Watch J Mascis perform with Fred Armisen’s band on “Seth Meyers”

Armisen has quickly been racking up appearances from his indie-rocker friends on Late Night, having already featured sit-ins from Marnie Stern and The Fiery Furnaces’ Eleanor Friedberger. ​Apparently, for Mascis, this will be a weeklong gig (at least according to the below tweet from @LateNightSeth).

Watch last night’s appearance (with guests Patrick Stewart and Counting Crows) below.

(Note: as of this posting, video is not available for UK audiences—sorry folks.)

Everyone welcome @DinosaurJr’s @Jmascis, who’s sitting in this week with the 8G Band! pic.twitter.com/dAx1ZW8Ygg

— Late Night (@LateNightSeth) May 20, 2014