In 1993, seminal grunge rock band Nirvana recorded The Pachyderm Sessions as part of the recording process for their album In Utero. Not all of the songs at the session made it on to the album, and a post on a Nirvana message board (as reported by Qevaz) recently revealed two never-before-heard songs. Both songs were written by Dave Grohl.

The first track, “Lullaby”, is a sci-fi freak-out reminiscent of The Doors, as it features drums, bass, and keyboards only.

The second track is untitled, and features Grohl playing all instruments on a speedy AC/DC-esque romp.

Thanks to youtube user Chinacat Sunflower for the videos!