AllMovie

The multitalented Ann-Margret lends voice to her stone-age cartoon counterpart "Ann-Margrock" as The Flintstones launches its fourth season. Ann-Margrock is coming to Bedrock to stage a big musical show, and Fred and Barney hope to perform a vaudeville turn in the festivities. Just before the boys' audition, they come face to face with Ann-Margrock herself--and, failing to recognize the superstar, Fred hires her as babysitter for his infant daughter Pebbles. The episode is highlighted by Ann-Margret's soulful renditions of the original lullaby "The Littlest Lamb" and the all-stops-out rock tune "I Love You But I Ain't Gonna Be Your Fool."