Clifford Lee "Cliff" Burton (February 10, 1962 – September 27, 1986) was an American musician, best known as the second bass guitarist for the American thrash metal band Metallica from December 1982 until his death in September 1986.
Burton joined Metallica in 1982 and performed on the band's first three studio albums: Kill 'Em All, Ride the Lightning and Master of Puppets. He also received a posthumous writing credit for the song "To Live Is to Die" from the band's fourth studio album, ...And Justice for All.
On September 27, 1986, Burton died in a bus accident in Kronoberg County, a rural area of southern Sweden, as the band was touring in support of the Master of Puppets album. Burton was replaced by bassist Jason Newsted the following month. He was also posthumously inducted into the Rock and Roll Hall of Fame with Metallica on April 4, 2009. He was selected as the ninth greatest bassist of all time in an online reader poll organized by Rolling Stone magazine in 2011.