1955, her single "My Boy – Flat Top, " reached No. 16 on the Billboard charts.<ref>Whitburn, Joel."Collins" The Billboard Book of Top 40 Hits, 9th Edition, Random House Digital, Inc., 2010, , p. 146</ref> A follow-up single, "Baciare Baciare (Kissing Kissing)", peaked at No. 43. In 1956, her single "Seven Days" peaked at No. 17. She recorded other singles and albums in the 1950s, with little chart success. In 1958, for the Coral Records label she released Picnic: Dorothy Collins Sings Steve Allen, an album of compositions by the musician/TV host/comedian. Collins sang a collection of educational tunes on an album titled Experiment Songs, one of six LPs in a set called Ballads for the Age of Science, composed and produced by Hy Zaret and Lou Singer around 1960. During the 1950s and '60s, Collins provided vocals for many TV and radio commercials produced and recorded by Raymond Scott's Jingle Workshop. A number of these performances were issued in 2019 on the double album The Jingle Workshop: Midcentury Musical Miniatures 1951–1965, on the Modern Harmonic label. In 1979, she performed in concert at Michael's Pub in New York. Theatre In the summer of 1957 she played Dorothy Gale in The Municipal Opera Association of St. Louis production of The Wizard of Oz, alongside Margaret Hamilton reprising her movie role of the Wicked Witch of the West. Collins played the title role in the Saint Paul Civic Opera Association's presentation of The Unsinkable Molly Brown. In 1971, Collins made her Broadway debut in Stephen Sondheim's Follies, portraying Sally Durant Plummer, a one-time Ziegfeld-style showgirl trapped in a disappointing marriage. Critic Martin Gottfried wrote of her performance: "Dorothy Collins, 'Hit Parade' jokes notwithstanding, has a voice of impressive versatility and range." Her performance earned a Tony Award nomination as Best Actress in a Musical, but lost to co-star, fellow Canadian-born actress Alexis Smith. When the production opened in Los Angeles in 1972, Collins reprised the role of Sally. At the Melody Top summer stock theatre in Milwaukee, Wisconsin she starred in Good News (1975), and she reprised her role in Follies (1977). In 1980 she appeared as Dolly in Hello Dolly at An Evening Dinner Theatre, Elmsford, New York. Personal life Collins was married to Raymond Scott from 1952 until their divorce in 1965. They had two daughters, Deborah and Elizabeth. She married actor Ron Holgate in December 1966, whom she met