Rock Island is the 17th studio album by the British rock group Jethro Tull, released in 1989. The album continued the hard rock direction the band took on the previous effort, Crest of a Knave (1987). The line-up now included Ian Anderson, Martin Barre, Dave Pegg and drummer Doane Perry in his first full recording with the band, although he was already a member of Jethro Tull since 1984. Without a permanent keyboard player, the role was shared by Fairport Convention's Martin Allcock and former Tull member Peter Vettese.