Maddy Prior (born 14 August 1947, Blackpool, England) is an English folk singer. One of the most accomplished female vocalists in the British folk music scene, Maddy Prior is best known as the lead singer in the electric folk-rock band Steeleye Span. In her teens Prior moved to St Albans, where she befriended the young Donovan Leitch and Mac MacLeod. She later formed a duo with MacLeod called Mac & Maddy. She became a roadie for visiting American musicians, including Reverend Gary Davis.