Joanne Catherall is an English singer who is one of two female vocalists in the English synth-pop band the Human League. In October 1980, Catherall was an unknown 18-year-old school girl when she and her best friend Susan Ann Sulley were discovered in Sheffield's Crazy Daisy Nightclub by Philip Oakey, the lead singer and a founding member of the Human League. The pair then joined Oakey in forming a new and subsequently commercially successful band line-up.