Deep Purple are an English hard rock band formed in Hertfordshire in 1968. Along with Led Zeppelin and Black Sabbath, they are considered to be among the pioneers of heavy metal and modern hard rock, although the members of the band have always refused to label themselves as heavy metal. The band has also incorporated pop and progressive rock elements . It was once listed by the Guinness Book of World Records as the world's loudest band, and it has sold over 100 million albums worldwide.Deep Purple was ranked #22 on VH1's Greatest Artists of Hard Rock program.

The band has gone through many line-up changes and an eight-year hiatus. The 1968-76 line-ups are commonly labelled Mark I, II, III and IV. Their second and most commercially successful line-up featured: Ian Gillan (vocals), Ritchie Blackmore (guitar), Jon Lord (keyboards), Roger Glover (bass guitar) and Ian Paice (drums). This line-up was revived from 1984-89 and again in 1993 before the rift between Blackmore and other members became unbridgeable. The current line-up including guitarist Steve Morse has been much more stable, though Lord's retirement in 2002 has left Paice as the only original member.