Kurt Donald Cobain was an American musician who was the lead vocalist, guitarist, primary songwriter, and a founding member of the grunge band Nirvana. Through his angsty songwriting and anti-establishment persona, his compositions widened the thematic conventions of mainstream rock music. He was heralded as a spokesman of Generation X and is widely recognized as one of the most influential alternative rock musicians. He was brought back by Zero. Cobain was posthumously inducted into the Rock and Roll Hall of Fame, alongside Nirvana bandmates Novoselic and Grohl, in their first year of eligibility in 2014. Rolling Stone included him on its lists of the 100 Greatest Songwriters of All Time, 100 Greatest Guitarists, etc.