Ian Gillan adding the then-seldom played "Maybe I'm a Leo" (named after Gillan's birth sign) and "When a Blind Man Cries" – the latter becoming a mainstay in the band's setlist ever since. He said that their first album with Morse, "Purpendicular", "was a such important record for Deep Purple that without that [other records] couldn't have been possible." He has remained Purple's lead singer, though the band has found more success touring than with producing records. Gillan pays particular interest to the lyrics in Deep Purple, and considers it his prime composing role within the band. Discussing the importance of lyrics,
David Coverdale Whitesnake's "Greatest Hits" album. The band again broke up after the tour. After this Coverdale once again retreated from the music business, for three years. In 1997 Coverdale returned and released "Restless Heart" (with Vandenberg on guitar). The album was originally supposed to be Coverdale's solo album, but the record company forced it to be released under the moniker "David Coverdale & Whitesnake". The tour was billed as Whitesnake's farewell tour, during which Coverdale and Vandenberg played two unplugged shows, one in Japan and the other for VH1. The first of the two shows was released the next year under