Vivienne Jill McAuliffe (19 July 1948 – 21 October 1998) was an English singer and songwriter, best known as lead singer of English jazz-rock fusion band Affinity and as a founding member of Principal Edwards Magic Theatre while at University of Exeter. McAuliffe also worked with Patrick Moraz while he was a member of the rock band Yes, singing on his first two solo albums. She also worked with Gerry Rafferty on his number one album City to City.