George Jacob Gershwin ( ; September 26, 1898 July 11, 1937) was an American composer and pianist. Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known. 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).
"An American in Paris" by george gershwin is widely known.
it says Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known. No titles are given for widely known pieces.  i think this was difficult because the title was listed later under a different category.