Julie Tippetts (born Julie Driscoll, 8 June 1947, London, England) is an English singer and actress, known for her 1960s versions of Bob Dylan's "This Wheel's on Fire", and Donovan's "Season of the Witch", both with Brian Auger & The Trinity. She and Auger had previously worked in Steampacket, with Long John Baldry and Rod Stewart.
http://en.wikipedia.org/wiki/Julie_Driscoll