The Flintstone Canaries

Cartoon character Fred Flintstone puts together this barbershop quartet in "The Flintstone Canaries" episode (10/24/1964) of The Flintstones. Fred forms the group to win a contest on the "Hum Along With Herman" TV show, but they can't sing. They find Fred's pal Barney turns out to be a natural tenor- but only when he's in the bath. They get him to join the group and the group ends up on the show singing in a bathtub - not for the contest, but for the show's sponsor's, Softsoap.