LOS ANGELES, California (X17online) - Motown's first white act the "Ivory Queen of Soul" Teena Marie has died at 54, her publicist confirmed.

The Grammy nominated artist was first signed to the Motown label in 1979 at just 19. She is famously known for her long working relationship with Rick James, who served as her mentor. Together they produced such hits as "I'm A Sucker for Your Love," "Lovergirl," "Square Biz," and "Fire and Desire".

Marie was discovered dead on Sunday in her California home by her daughter, she apparently died in her sleep. No cause of death has been released, but her publicist revealed that the singer suffered a grand mal seizure almost a month ago.

Photo Courtesy: Stax Records