Marilyn McCoo, Billy Davis Jr. Win Best R&B Vocal Performance By A Duo, Group Or Chorus

January 04, 2010 -- 5:57 pm PST

Marilyn McCoo and Billy Davis Jr. accept the GRAMMY for Best R&B Vocal Performance By A Duo, Group Or Chorus at the 19th GRAMMY Awards on Feb. 19, 1977, in Los Angeles.