For most of the band's existence, the line-up was Kurt on vocals and guitar, Krist Novoselic on bass and Dave Grohl (now the frontman with the Foo Fighters) on drums.
What was Kurt's life like?
Well, he achieved massive success as a songwriter and rock icon, but his personal life remained troubled.
He had an intense relationship with Courtney Love (singer with the band Hole, who later became an actress). They met in 1991 and married the following year.