What American composer wrote both "Rhapsody in Blue" and "An American in Paris"
Gershwin (disambiguation): George Gershwin (1898–1937), American composer, author of famous works such as "Rhapsody in Blue" and "An American in Paris" George Gershwin:  Among his best-known works are the orchestral compositions "Rhapsody in Blue" (1924) and "An American in Paris" (1928) as well as the opera "Porgy and Bess" (1935).
George Gershwin