The Foo Fighters frontman started off as a punk rock drummer before rising to superstardom in grunge band Nirvana, and said he dislikes the purist attitude some bands have toward successful groups. He told Q Magazine: "Don`t get me started on guilt. Honestly, guilt and music should have nothing to do with each other. Growing up in the punk rock scene, unfortunately there were rules. "You`d imagine that`d be the one place you`d be free of any boundaries. But you weren`t supposed to do certain things. "To me, I was a musician. I loved the Dead Kennedys, Bad Brains and all this punk rock s**t, but I also loved Motorhead, Venom and f***ing ABBA. I didn`t have that guilt. I can be friendly with the Jonas Brothers and Bob Mould." Dave, 42, added that while he wasn`t guilty for his success, it deeply affected Nirvana frontman Kurt Cobain, who committed suicide in 1994. He said: "The whole thing with guilt is... Of course it burnt a hole in Kurt`s stomach. It had a lot to do with how uneasy he felt about Nirvana`s success. But s**t, I didn`t." Foo Fighters` seventh album `Wasting Light` is released on April 11.