Murray Seafield Saint-George Head (born March 5, 1946) is a British actor and singer. He was born in London to Seafield Head, a documentary-maker, and Helen Shingler, an actress. His younger brother is Buffy the Vampire Slayer star Anthony Head. Head began acting and writing songs as a child, and by the mid-1960s he had a London recording contract. He had limited success until asked by Tim Rice and Andrew Lloyd Webber to play Judas Iscariot on the original concept album version of Jesus Christ Superstar (singing the hit "Superstar").
http://en.wikipedia.org/wiki/Murray_Head
http://www.youtube.com/watch?v=Mn4IqAlDdZY