There is more than one artist by the name of Jack Harris: 1) an English vocalist known for his work with the British progressive rock band, The Alan Parsons Project 2) a Welsh singer-songwriter from Builth Wells, Wales 3) a British sound artist

1) Jack Harris (born 3 October 1951, Shoreditch, Hackney, London) is an English vocalist known for his work with the British progressive rock band, The Alan Parsons Project. He sang lead vocals on "Day After Day (The Show Must Go On)" on the album "I Robot" (1977) and on the single "Pyramania" taken from the Grammy-nominated album "Pyramid" (1978). He also sang backing vocals…