Input (grade 7): Kurt Donald Cobain (February 20, 1967 â "c. April 5, 1994) was an American singer-songwriter, musician and artist, best known as the lead singer and guitarist of the grunge band Nirvana.
Output (grade 6): Kurt Donald Cobain (February 20, 1967 - c. April 5, 1994) was the lead singer and guitarist of the grunge band Nirvana, which also included bassist Krist Novoselic and drummer Dave Grohl.