KURT COBAIN was told to steer clear of heroin by his Nirvana bandmate.
The grunge band's bassist Krist Novoselic said he told the frontman not to touch it and how he now regrets now being able to stop him committing suicide.
Novoselic, who co-founded the band with Cobain, said: "There's regrets. I was angry. It's just a waste. You know it was the f***ing drugs.
"It's pretty bad. All in 20-20 hindsight, you know. Kurt called me the first time he did heroin and he told me he did it. And I told him, 'Don't do it man. You're playing with dynamite.'
"I made my feelings known very early on. And I was outspoken about a few things, and if that was advice... it wasn't heeded. And in a lot of ways I was saying things that weren't very welcome, so that strained things with the relationship."
And he said he started to get tired of wanning Cobain about the dangers of heroin.
He added: "I couldn't just say it over and over again. When you deal with those issues people have to make their own realisations, hit rock bottom or whatever. Then they're going to turn things around. Well, obviously that didn't happen."
Nirvana, which kick-started Dave Grohl's career when he joined as the drummer in 1991, split up in April 1994 following Cobain's death.
Talking about their anthemic sound, in particular their certified ten times platinum album Nevermind, Novoselic said: "It was slick, and accessible, and full of a lot of pop hooks.
"That's when rock music really wasn't happening, so Nevermind was released and there was Smells Like Teen Spirit, which was a phenomenal tune, and a lot of energy.
"I remember when Butch Vig, our producer, put up the rough mixes of that song and he goes, 'You've got to hear this tune.' He's just like cranking it up on the mixer. And I'm like, 'Wow, yeah, that rocks.'"