21) What year did Nirvana release their final studio album?
22) What is the title of the song that broke Nirvana into mainstream music?
23) Who joined Kurt Cobain and Krist Novoselic in the band's final lineup?
24) Who produced Nirvana's albums Nevermind, In Utero and MTV Unplugged?
25) Who wrote the song All Apologies?
26) What year did Nirvana officially form?
27) What was the name of Nirvana's first single?