Susan Ann Sulley, formerly known as Susanne Sulley and Susan Ann Gayle, is an English singer who is one of the two female vocalists in the synth-pop band the Human League. Born and raised in Sheffield, England, as a schoolgirl in 1980 Sulley (aged 17) and her friend Joanne Catherall were "discovered" in the Crazy Daisy Nightclub in Sheffield by Philip Oakey, the lead singer and a founding member of The Human League. They soon were asked to provide full vocals by Oakey as an experiment.