Ian Gillan this time, Gillan also made an appearance on a re-recording of "Smoke on the Water" with Rock Aid Armenia, consisting of himself, Bryan Adams, Tony Iommi, David Gilmour, Roger Taylor, Brian May, Bruce Dickinson and Paul Rodgers as a charity record for aid relief in Armenia following the then-recent earthquake. He continued to tour with his solo band, albeit with several line-up changes throughout Europe, the US and Russia. At the urging of Glover, Lord and Paice, who wanted him in the fold for the band's 25th anniversary tour, Gillan rejoined Deep Purple in 1992 to record the album "The
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