Born in Koblenz, Germany, Gus Kahn emigrated to the United States and became one of the most prolific and successful lyricists of his era. He began his career in Chicago before moving to New York, where he wrote for Broadway shows and Tin Pan Alley publishers. Kahn's collaboration with composer Walter Donaldson produced numerous hits, including 'My Buddy,' 'Carolina in the Morning,' and 'Makin' Whoopee!'. After moving to Hollywood, he contributed lyrics to dozens of films, solidifying his legacy with timeless classics like 'It Had to Be You' and 'Dream a Little Dream of Me' before his death in 1941.