The trio played Marigold the non-album b-side of Nirvana's 'Heart-Shaped Box' with Grohl both playing drums and singing lead vocals.

The gig was actually a secret Foo Fighters show to celebrate the completion of their new album.

The Foo Fighters debuted four songs from the as-yet-untitled new album: Back + Forth, White Limo, Dear Rosemary and These Days.

The band's seventh studio record features Novoselic playing accordion and bass on one track, I Should Have Known.