Procol Harum

Procol Harum were an English rock band formed in Southend-on-Sea, Essex, in 1967. Their best-known recording was the 1967 single "A Whiter Shade of Pale", which sold over 10 million copies worldwide and was among the few singles to reach that level of commercial success. Although noted for baroque and classical influences, Procol Harum’s music was described as psychedelic rock and proto-progressive rock with elements of blues, rhythm and blues, and soul.