A Sweetheart is a compilation of recordings by Tommy Dorsey. It features some of Dorsey's most famous songs. The album is a testament to Dorsey's talent as a bandleader and trombone player. His smooth, mellow sound was one of the defining characteristics of the big band era, and his orchestra was one of the most popular and successful bands of its time. This album is a must-have for any fan of big band music.