Question: Kiley Dean was a back-up singer for what famous singer, who was also known as the Queen of Pop?
Sentence (from "Catherine Porter"): To date, Porter has released one album of solo material, "Something Good", in 2002, and has also worked as a back-up singer for Queen, Tony Hadley, Edwin Starr, Kiki Dee, Paul Rodgers, Sam Moore, Mel B and Chaka Khan.
Relevant evidence: No