context: Mark Leslie Norton, [1] better known by the artist name Mark St. John, (February 7, 1956, Los Angeles, California, United States - April 5, 2007 - Anaheim, California, United States) was an American musician and songwriter. , best remembered for his career as a short-time guitarist for the rock band Kiss. He joined the band in April 1984, replacing Vinnie Vincent, who was separated from the band, and played on the 1984 Kiss album Animalize. [1] Soon after joining the band, he contracted arthritis and Reiter's disease [2] [3] and was forced to leave the band in December 1984 [1].
question: In what year was Mark St. John born?
answers.text: 1956