Daughter of late Nirvana frontman praises new documentary during speech at LA premiere
The recording of the Nirvana frontman was unearthed in the making of new documentary 'Montage Of Heck'
Hole singer revealed the news at the Tribeca Film Festival over the weekend (April 17)
The song features in the new 'Kurt Cobain: Montage of Heck' film
Daughter of Nirvana frontman says 'our culture is obsessed with dead musicians'
The film is set for a UK theatrical release this Spring
Grohl's interview for the documentary took place too late to make it into the film's current edit
The HBO documentary premieres this week at Sundance Film Festival
'She hasn't seen the movie,' says filmmaker Brett Morgen