James "Jimmy" Dorsey (February 29, 1904 – June 12, 1957) was a prominent American jazz clarinetist, saxophonist, composer and big band leader. He was known as "JD". He recorded and composed the jazz and pop standards "I'm Glad There Is You (In This World of Ordinary People)" and "It's The Dreamer In Me". His other major recordings were "Tailspin", "John Silver", "So Many Times", "Amapola", "Brazil (Aquarela do Brasil)", "Pennies from Heaven" with Bing Crosby, Louis Armstrong, and Frances Langford, "Grand Central Getaway", and "So Rare".