Mary Isobel Catherine Bernadette O’Brien OBE (16 April 1939 – 2 March 1999), professionally known as Dusty Springfield, was an English pop singer and record producer whose career extended from the late 1950s to the 1990s. With her distinctive sensual mezzo-soprano sound, she was an important singer of blue-eyed soul and at her peak was one of the most successful British female performers.