Zalvation: Live In The 21st Century is a live album, released in 2006, which served as a The Sensational Alex Harvey Band reunion notwithstanding that Harvey himself had died in 1982. This was the third SAHB album to be made without Alex Harvey, the others being the band's eighth studio album, Fourplay and another reunion album Live in Glasgow 1993. This album features Max Maxwell on vocals, and sees the return of Hugh McKenna to the band, his last appearance being on the Fourplay album, for which he had been vocalist. The album commemorated a reunion tour, but was also intended as a farewell tour; however the tour had been so successful that the band decided to continue. The album release contains 2 CDs and comprises new versions of songs written or covered by the original SAHB. Although four fifths of the group on Zalvation were responsible for 1977's SAHB (without Alex) album Fourplay, no songs from this album are included.
Since the release of the reunion concert album, original guitarist, Zal Cleminson, announced his departure from the band. The band made the decision to carry on with Julian Saxby replacing Cleminson.