Lock Up the Wolves

Lock Up the Wolves is the fifth studio album by American heavy metal band Dio, released on May 15, 1990, through Reprise Records in North America, and through Vertigo Records elsewhere. Vocalist Ronnie James Dio was the only band remember remaining from the previous album, Dream Evil. New personnel were 18-year-old guitarist Rowan Robertson, bassist Teddy Cook, keyboardist Jens Johansson, and drummer Simon Wright. Rod Simpkins would replace Cook as bassist for several tour dates in 1990. Lock Up the Wolves would mark a drop-off in Dio's popularity, being less commercially and critically successful than the band’s previous four studio albums. Los Angeles Times stated in September 1990 that the album "died a quick death on the charts" and "half-empty houses are not uncommon" on the ongoing tour.