By the point The Mills Brothers’ new anthology Cab Driver: The Dot and Paramount Years: 1958-1972 begins in 1958, Herbert, Harry and Donald Mills had already been superstars for nearly thirty years. Known for their tight harmonies and sophisticated scatting as much as for their ability to mimic musical instruments with their voices, The Mills Brothers scored their first U.S. No. 1 hit in 1931 on the Brunswick label with “Tiger Rag,” an oldie from 1917 (!). Hollywood stardom followed at