The Rolling Stones are an English rock band formed in London in 1962. Their early mission was to share their enthusiasm for rhythm and blues, but they were received as symbols and leaders of rebellious youth. The first settled line-up had Brian Jones on guitar and harmonica, Ian Stewart on piano, Mick Jagger on lead vocals and harmonica, Keith Richards on guitar and backing vocals, Bill Wyman on bass and Charlie Watts on drums. Jones founded and led the band, but after teaming as co-writers Jagger and Richards assumed leadership of the band. Jones' increasing physical and mental troubles forced his departure from the band two weeks prior to his drowning death in 1969. Since Wyman left in 1993, the full band members have been Jagger, Richards, Watts and guitarist Ronnie Wood who joined in 1975, replacing Mick Taylor (who had followed Jones). Estimated album sales are above 200 million, with 15 gold, 17 platinum and 11 mult-platinum selling albums in the US alone.