Acting · b. 1947 Maddy Prior Biography Maddy Prior is an English singer. She is the lead singer of folk rock band Steeleye Span. Acting Wintersmith 2014 Levellers: Chaos Theory Guest 2006 Mike Oldfield: Exposed Self 2005 Steeleye Span: A 20th Anniversary Celebration Self - Vocals 2003 Radio Wonderful Self - Steeleye Span 1973 Agent-readable