Singer says he tried to get Cobain to record with him
Rush for rarities from Radiohead, Bat For Lashes and Grinderman
30 Seconds To Mars star's imitation was merely 'an exercise in exploration'
Statue was revealed on the 17th anniversary of Cobain's death
Extensive collection of memorabilia to go on show in Seattle
The EP had only previously been released in Australia
'Stinking of You' makes an appearance in 'Hit So Hard'
Nirvana: Taking Punk To The Masses will open at the Experience Music Project from April 16, 2011
Nirvana man dubs the station 'Empty TV' in the letter