Input (grade 13): During his career Gillan also fronted his own band, had a year-long stint as the vocalist for Black Sabbath, and sang the role of Jesus in the original recording of Andrew Lloyd Webber's rock opera Jesus Christ Superstar.
Output (grade 8): Gillan is also noted for singing the part of Jesus on the original rock opera concept album Jesus Christ Superstar. Gillan later became lead singer of Black Sabbath.