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Emerson, Lake & Palmer (informally known as ELP) was an English progressive rock supergroup formed in London in 1970. The band consisted of Keith Emerson (keyboards) of the Nice, Greg Lake of King Crimson (vocals, bass, guitar, producer), and Carl Palmer of Atomic Rooster (drums, percussion). With nine RIAA-certified gold record albums in the US and an estimated 48 million records sold worldwide,[5] they are one of the most popular and commercially successful progressive rock groups of the 1970s, with a musical sound including adaptations of classical music with jazz and symphonic rock elements, dominated by Emerson's flamboyant use of the Hammond organ, Moog synthesizer, and piano (although Lake wrote several acoustic songs for the group).

The band became prominent after performing at the Isle of Wight Festival in August 1970. In their first year, the group signed with E.G. Records (who distributed the band's records through Island Records in the United Kingdom and Atlantic Records in North America) and released Emerson, Lake & Palmer (1970) and Tarkus (1971), both of which reached the UK top five. The band's success continued with Pictures at an Exhibition (1971), Trilogy (1972), and Brain Salad Surgery (1973, released on ELP's own Manticore Records label). After a three-year break, Emerson, Lake & Palmer released Works Volume 1 (1977) and Works Volume 2 (1977). After Love Beach (1978), the group disbanded in 1979.

The band re-formed partially in the 1980s, featuring Cozy Powell instead of Palmer, a member of Asia. Robert Berry then replaced Lake while Palmer returned, forming 3. In 1991, the original trio re-formed and released two more albums, Black Moon (1992) and In the Hot Seat (1994), and toured between 1992 and 1998. Their final performance occurred in 2010 at the High Voltage Festival in London to commemorate the band's 40th anniversary. Emerson and Lake died in 2016, leaving Palmer as the only surviving band member.