Roxy Music were an English rock group formed in 1971 by Bryan Ferry, who became the group's lead vocalist and chief songwriter, and bassist Graham Simpson. Alongside Ferry, the other longtime members were Phil Manzanera (guitar), Andy Mackay (saxophone and oboe) and Paul Thompson (drums and percussion). Other former members include Brian Eno (synthesizer and "treatments"), Eddie Jobson (synthesiser and violin), and John Gustafson (bass). Although the band took a break from group activities in 1976 and again in 1983, they reunited for a concert tour in 2001, and toured together intermittently between that time and their break-up in 2011. Ferry frequently enlisted members of Roxy Music as session musicians for his solo releases.