Madeleine Edith Prior is an English folk rock singer, best known as the lead vocalist of Steeleye Span. She was born in Blackpool and moved to St Albans in her teens. Her father, Allan Prior, was co-creator of the police drama Z-Cars. She was married to Steeleye bass guitarist Rick Kemp, and their daughter, Rose Kemp, is also a singer. Their son, Alex Kemp, is also a guitarist and has deputised for his father playing bass guitar for Steeleye Span.