By the time she was in high school, she played in bandleader Vince Genovese's orchestra, then toured with her own singing and dancing act throughout the Midwest.

[1] Hayes then moved on to New York City, where she auditioned for theatre owner/operator and producer J.J. Shubert, and was hired for principal roles in three roadshow operettas: The Student Prince, The Merry Widow, and Blossom Time.

Hayes portrayed a similar character in another television role as the gingerbread-house witch in Season 8, Episode 10 (1971) of Bewitched ("Hansel and Gretel in Samantha-Land").

Hayes played Mammy Pansy Yokum in the Li'l Abner 1956 Broadway musical,[4] the 1959 film version, and a 1971 television special.

[1] Hayes made television appearances on Murder, She Wrote,[5] on the soap opera General Hospital as Robert Scorpio's mentor O'Reilly in 1981 and 1985, and in the role of Maw Weskitt in Episode 39 of the second season of The Monkees ("Hillbilly Honeymoon").