Kurt Weill (born March 2, 1900) and Vernon Duke (born Vladimir Dukelsky, October 10, 1903) were both European born composers who composed “serious” concert music before emigrating to the United States and becoming two of the greatest exponents of American popular song. Kurt Weill felt strongly that music should have a political point of view, his "Three Penny Opera" and "Mahagony", both composed in Germany before he emigrated to the United States are biting social commentaries on the drawbacks of capitalism run amuck.