Slaves and Masters is the thirteenth Deep Purple album, released in 1990. Before the recording process started, tensions within the band grew, as Ian Gillan and Ritchie Blackmore coudn't work together any more. This led to the firing of Ian Gillan at the insistence of Blackmore. He also brought in a new singer, Joe Lynn Turner, whom he worked with some years before in later reincarnation of his band, Rainbow. The album was not a success and is considered by many fans to be the worst Deep Purple studio album. The band was criticised for radio friendly compositions and sound. Read more on Last.fm.