Trudy Stevens provided the singing voice for Vera-Ellen, including in "Sisters". (The first edition of Vera-Ellen's biography by David Soren made the mistake of suggesting that "perhaps" Clooney sang for Vera in "Sisters". The second edition of the biography corrected that error by adding this: "Appropriately, they sing "Sisters" with Rosemary Clooney actually dueting with Trudy Stabile (wife of popular bandleader Dick Stabile), who sang under the stage name Trudy Stevens and who had been personally recommended for the dubbing part by Clooney. Originally, Gloria Wood was going to do Vera-Ellen's singing until Clooney intervened on behalf of her friend.") It was not possible to issue an "original soundtrack album" of the film, because Decca Records controlled the soundtrack rights, but Clooney was under exclusive contract with Columbia Records. Consequently, each company issued a separate "soundtrack recording": Decca issuing "Selections from Irving Berlin's White Christmas", while Columbia issued "Irving Berlin's White Christmas". On the former, the song "Sisters" (as well as all of Clooney's vocal parts) was recorded by Peggy Lee, while on the latter, the song was sung by Clooney and her own sister, Betty.