As a jazz singer, Fred Flintstone is nicknamed "The Golden Smog", a spoof on singer Mel Tormé's nickname, "The Velvet Fog".
Hot Lips/Freds' singing voice was supplied by Duke Mitchell (comedian/singer/actor).
ABC originally broadcast this episode in black and white.
The Rockland Dance Hall where Hot Lips Hannigan performs, is based on the Roseland Dance Hall, which operated in New York from 1922-2014.