The all-star combo treated the studio audience to another fiery run-through of ‘Bad Reputation,’ with Jett in fine voice and the Foos thrashing through the song like their lives depended on it. Take a look at this clip from the show and try to keep from wondering what it might sound like if Jett put the Blackhearts on hold to record an entire album with Dave Grohl and company:

Jett will reunite with the Foos on ‘The Late Show with David Letterman’ tonight to deliver a ‘Bad Reputation’ encore. It’s admittedly not quite the same as seeing the original event unfold onstage at the Garden, but if you’re a fan of either act, you won’t want to miss this.