David Coverdale
In 1989 Coverdale recruited Vandenberg to recorded a new album, Slip of the Tongue. Vandenberg co-wrote the entire album with Coverdale. But he had a wrist injury. So he could not do solo guitar. Fellow virtuoso Steve Vai was recruited. He re-recorded most of Vandenberg's existing parts and finished the album. Upon release, it was very successful in Europe and the U.S.