Kallen performed at numerous prominent live venues including Manhattan's "Copacabana", Morris Levy's "Versailles", the Capitol Theater, the Maisonette Room at the St. Regis, the Cafe Rouge at the Hotel Pennsylvania and the Plaza Hotel's Persian Room. As well as this, she starred on Broadway in "Finian's Rainbow"; in the 1955 film "The Second Greatest Sex" and on numerous television shows including "The Tonight Show" with Johnny Carson, "The Big Beat" with singer-host Richard Hayes, "American Bandstand", and Fred Allen's "Judge for Yourself".