Cause of death: overdose
James Douglas Morrison (December 8, 1943 – July 3, 1971) was an American singer, songwriter and poet who was the lead vocalist and primary lyricist of the rock band The Doors. Due to his energetic persona, poetic lyrics, distinctive voice, erratic and unpredictable performances, along with the dramatic circumstances surrounding his life and early death, Morrison is regarded by music critics and fans as one of the most influential frontmen in rock history. Since his death, his fame has endured as one of popular culture's top rebellious and oft-displayed icons, representing the generation gap and youth counterculture.
Together with keyboardist Ray Manzarek, Morrison founded the Doors in 1965 in Venice, California. The group spent two years in obscurity until shooting to prominence with their number-one hit single in the United States, "Light My Fire", taken from their self-titled debut album. Morrison recorded a total of six studio albums with the Doors, all of which sold well and many of which received critical acclaim. He frequently gave spoken word poetry passages while the band was playing live. Manzarek said Morrison "embodied hippie counterculture rebellion".
Morrison developed an alcohol dependency, which at times affected his performances on stage. In 1971, Morrison died unexpectedly in a Paris apartment at the age of 27, amid several conflicting witness reports. Since no autopsy was performed, the cause of Morrison's death remains disputed.
Although the Doors recorded two more albums after Jim Morrison died, his death greatly affected the band's fortunes, and they split up two years later. In 1993, Morrison was inducted into the Rock and Roll Hall of Fame along with the other Doors members. Rolling Stone, NME, and Classic Rock have ranked him among the greatest rock singers of all time.
Source : Wikipedia