Mary Wilson (born March 6, 1944) is an American singer best known as a member of the Motown soul and pop group The Supremes. Wilson was the only Supreme who remained in the group from the time it was formed in 1959, as The Primettes, until the very end, when the group was disbanded in 1977. The Supremes (Diana Ross, Florence Ballard, and later, Cindy Birdsong along with Mary Wilson) enjoyed twelve US number-one hit records..