Teena Marie

Mary Christine Brockert (March 5, 1956 – December 26, 2010), better known by her stage name Teena Marie, was an American singer, songwriter and producer. She was known as Tina before taking the stage name Teena Marie, then she later acquired the nickname of Lady Tee (sometimes spelled Lady T), given to her by collaborator and friend, Rick James.

source: Wikipedia