 The sisters auditioned for Dorsey in their West Forty-Fifth Street apartment, where he offered them a job on the spot.Following their initial few appearances on Dorsey's radio program (for which they were not credited), he began to receive mail from listeners wondering about the identities of the new vocalists.Realizing he had a potential threat to the vocal domination of The Andrew Sisters, he made plans to build them into regular and featured appearances on his show.