The Clark Sisters — Jackie, Dorinda, Denise, Twinkie and Karen — were one of the most important gospel groups of the 20th century. The sisters grew up in Detroit and learned to sing from their mother, Mattie Moss Clark, a renowned gospel singer in her own right. With her help, the Clark Sisters went on to win three Grammy awards and become the top-selling female gospel group of all time. Simply put, they changed the sound of modern gospel music.