Simplify the following text for a Grade 10 native English-speaking person.
Original: Nirvana was an American rock band that was formed by singer\/guitarist Kurt Cobain and bassist Krist Novoselic in Aberdeen , Washington in 1987 .
Simplified: Nirvana started in Aberdeen , Washington in 1987 when singer Kurt Cobain and the bassist Krist Novoselic met and decided to form a band .