Happy Birthday Marilyn McCoo (born September 30, 1943) is an American singer, actress, and television presenter, who is best known for being the lead female vocalist in the group the 5th Dimension as well as hosting the 1980s music television show Solid Gold. Marilyn McCoo & The 5th Dimension - One Less Bell To Answer. “One Less Bell to Answer” is a song written by Burt Bacharach and Hal David. Originally written in 1967 for Keely Smith, the song was rediscovered in late 1969 by Bones Howe, the