60s

Four Tops are an American Motown musical quartet, whose repertoire has included doo-wop, jazz, soul music, rnb, disco, adult contemporary, showtunes, and even psychedelic rock. Founded in Detroit, Michigan as The Four Aims, lead singer Levi Stubbs and group mates Abdul "Duke" Fakir, Renaldo "Obie" Benson, and Lawrence Payton remained together for over four decades, finally forced to endure a lineup change when Payton died in 1997. At that time, Theo Peoples was added to the lineup; Peoples later replaced Stubbs, who fell ill from cancer, and Ronnie McNeir assumed Peoples' spot.

"Mama" Cass Elliot, Baroness von Wiedenman (19 September 1941 – 29 July 1974), born Ellen Naomi Cohen, was a noted American singer who performed with The Mamas & the Papas. She then went onto a successful solo career, releasing nine albums. Born in Baltimore, Maryland, she spent most of her childhood both in Baltimore and Alexandria, Virginia, a suburb of Washington, D.C. Elliot was widely considered the most charismatic member of the Mamas & the Papas due to her sense of humor and optimism, in part because of her large size and weight.

One of the few Welsh bands to release records on a fairly regular basis in the mid to late '60s, the Bystanders are chiefly notable not for their own derivative music, but because they evolved into the Welsh progressive rock group Man. As the Bystanders, they managed to release eight singles in the U.K. between 1965 and 1968, competently plugging into Merseybeat, blue-eyed soul, and harmony pop trends without developing any clear vision of their own or landing any superb material.