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" and all of clooney's vocal parts were recorded by peggy lee. on the latter, the song was sung by rosemary clooney and her own sister, betty.