Tommy Dorsey
Thomas Francis Dorsey Jr. (November 19, 1905 – November 26, 1956) was an American jazz trombonist, composer, conductor and bandleader. He was an important person in swing music. His theme song was "I'm Getting Sentimental Over You". He is best known for "Opus One", "Song of India", "Marie", "On Treasure Island", and his biggest hit single, "I'll Never Smile Again".