Letters To Santa: The 24 Hour Comedy And Music Marathon has been an annual Chicago charitable tradition since 2002. This year’s installment ran from 6pm on December 19-20, with performers including Jeff Tweedy, Ty Segall, Bonnie “Prince” Billy, among others. Dave Grohl was also recruited to do a virtual performance at the gig.... and Dave went deep into the vault for this special night - performing "Marigold" (the only song released by both Nirvana and Foo Fighters) and “New Way Home”
“New Way Home” was from the Foo's album The Colour And The Shape while "Marigold" was first released in 1992 under Grohl’s pseudonym Late!, then released as the B-side to Nirvana's “Heart-Shaped Box” single in 1993 and finally it was on the Foo's 2006 acoustic live album Skin And Bones, making it the only track to be released by both Nirvana and Foo Fighters and the only Nirvana song Grohl sings on.
Oh and by the way - he played the whole thing using his daughter Violet's guitar ;)