The documentary, which debuted on HBO, hits theaters on Aug. 7.
Kurt Cobain fans have one more reason to see Brett Morgen's critically acclaimed documentary about the late Nirvana frontman, Kurt Cobain: Montage of Heck, when it's released theatrically on Aug. 7: The filmmaker tells Billboard exclusively that he has added a new, previously unheard demo -- which features Cobain singing in a falsetto -- to the film's soundtrack.
Morgen says he inserted the new song without altering the cut of the movie that played on HBO, which has since been nominated for seven Emmys. He declines to divulge where the track appears "because I don't want to get people out there bootlegging it on their cell phones." The track does not have a title -- in fact, none of the songs pulled from the audiotapes do because, Morgen explains, the cassettes were unmarked -- but the filmmaker says there's some evidence that Cobain recorded it in 1991 because it appears on a tape "on which he was also working on 'Old Age,'" which was written during the Nevermind sessions and later rewritten and recorded by Courtney Love and her band Hole.