Take 6 & Brian McKnight

With roots in gospel, doo wop, and sophisticated jazz-influenced singing groups of mid-century America, the a cappella group Take 6 are a throwback to an earlier era of American music, and they were a precursor for a number of black male pop groups of the '90s, most notably Boyz II Men. The group's membership includes Alvin Chea, Khristian Dentley (who replaced Cedric Dent in 2011), Mark Kibble, Claude V. McKnight III (brother of Brian McKnight), Joey Kibble (who replaced Mervyn Warren in 1991), and David Thomas. Kibble and McKnight caught the a cappella bug at Alabama's Oakwo...