Ann-Margrock is based and voiced by Ann-Margaret, the Swedish-American actress, singer and dancer of the 1960's. In the first episode of the fourth season entitled "Ann-Margrock Presents", Ann-Margrock comes to town for a big concert and stays with the Flintstones; who do not know who she is. After a few tries Fred and Barney both get on the Ann-Margrock Show.

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