Mark played on all but one of the tracks of the 1984 Animalize album. On the subsequent tour his condition had deteriorated and was only able to play 1 full and 3 partial shows. BRUCE KULICK was called in as a temporary guitarist to play the remainder of the partial sets as well as the rest of the tour. Mark's condition was not improving and sadly had to soon step down to have Kulick take his place permanently on December 8,1985.

His musical career not over, Mark later formed the band White Tiger in 1986 and then interestingly enough teamed up with former KISS drummer PETER CRISS to record a demo in 1990. A self-produced CD entitled the MARK ST JOHN Project was released in 1999.
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