Deep Purple

Deep Purple are an English rock band formed in London in 1968. They are considered to be among the pioneers of heavy metal and modern hard rock, but their musical approach has changed over the years. Originally formed as a psychedelic rock and progressive rock band, they shifted to a heavier sound with their 1970 album Deep Purple in Rock. Deep Purple, together with Led Zeppelin and Black Sabbath, have been referred to as the "unholy trinity of British hard rock and heavy metal in the early to mid- seventies". They were listed in the 1975 Guinness Book of World Records as "the globe's loudest band" for a 1972 concert at London's Rainbow Theatre and have sold over 100 million albums worldwide. Deep Purple have had several line-up changes and an eight-year hiatus. The 1968–1976 line-ups are commonly labelled Mark I, II, III and IV. Their second and most commercially successful line-up consisted of Ian Gillan and Roger Glover, who joined founder members Jon Lord, Ian Paice and Ritchie Blackmore. This line-up was active from 1969 to 1973 and was revived from 1984 to 1989 and again from 1992 to 1993. From Wikipedia (https://en.wikipedia.org/wiki/Deep_Purple) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)