Madonna

From Tardis Wiki, the free Doctor Who reference

Madonna was a pop singer. (ST: The Reproductive Cycle) Madonna was once speculated by media to be an actress in a movie adaptation of The Darvias Saga. (ST: Best Seller) Jonas Rust once compared the Doctor's choice of a single name to Madonna's. (EDA: The City of the Dead) Bernice Summerfield was aware of Madonna. (NA: No Future)