At the age of 14,Kurt Cobain was given his first guitar by his uncle. (Cobain was offered the choice of a guitar or a bicycle as a birthday gift, and chose the guitar.) Cobain started by learning a few covers, including AC/DC's "Back in Black" and The Cars' "My Best Friend's Girl". He soon began working on his own songs.In 1991, the arrival of Nirvana's "Smells Like Teen Spirit" marked the beginning of a dramatic shift of popular rock music away from the dominant genres of the 1980s and toward grunge and alternative rock. Other hit songs written by Cobain include "Come as You Are", "Lithium", "In Bloom", "Heart-Shaped Box", "All Apologies", and "About a Girl".
During the last years of his life, Cobain struggled with drug addiction and the media pressures surrounding him and his wife Courtney Love. On April 8, 1994, Cobain was found dead in his home. His death was ruled a suicide by self-inflicted shotgun wound to the head. Since then, the circumstances surrounding his death have fueled much analysis and debate.
More:

Kurt Cobain Lyrics
List of songs referencing Kurt Cobain
Declassified Police report
Life Story
Suicide Dispute
Cobain final weeks
I'd rather be hated for who I am, than loved for who I am not.
-Cobain(1993)
