Despite all the posthumous releases, 'Nevermind' producer Butch Vig says there is one Nirvana song that has not yet seen the light of day called 'Song in D'.

'Nirvana', 'With the Lights Out', 'Sliver: The Best of the Box', and 'Icon' are just a few of the compilation albums released after the death of Nirvana frontman Kurt Cobain. Throw all the "unreleased material" hype aside, and there is really only one legitimate unreleased song in the bunch -- 'You Know You're Right'. All the greatest hits, box sets, and deluxe editions of their discography have only added live and demo versions of already released songs to the band's catalog.

Nevermind producer Butch Vig joined Nirvana members Dave Grohl and Krist Novoselic for a town hall meeting to celebrate the 20th anniversary of 'Nevermind'. The Jon Stewart hosted event unveiled some details about a song that was not included in the just-released super deluxe edition of 'Nevermind'.

According to, Butch Vig said that there was an unreleased song from the Nevermind sessions that had the obvious working title 'Song in D'. Even though the song has no lyrics, Grohl laughingly said "Sounds like another box set!" Well said Mr. Grohl, the sad truth is that the song probably will surface as part of a $200 box set at some point in the future.