Clara Mae Ward was an American gospel singer who achieved great artistic and commercial success during the 1940s and 1950s, as leader of The Famous Ward Singers. A gifted singer and arranger, Ward adopted the lead-switching style, previously used primarily by male gospel quartets, creating opportunities for spontaneous improvisation and vamping by each member of the group, while giving virtuoso singers such as Marion Williams the opportunity to perform the lead vocal in songs such as "Surely, God Is Able", "How I Got Over" and "Packin' Up". The album Surely God Is Able by The Famous Ward Singers was the first by a gospel group to exceed sales of 500,000 units.