The Flintstones Season 4 Episode 1

Fred and Barney learn that local talent is being sought for the Bedrock Bowl’s premiere event, a television special starring Ann-Margrock (voiced by Ann-Margret). The boys go home and prepare for an audition, and are aided by Ann-Margrock herself (whom they fail to recognize), who comes in to the Flintstones’ home to use the phone after her car breaks down.