Over a career spanning four decades, Warren wrote more than 800 songs. Other well known Warren hits included "I Only Have Eyes for You", "You Must Have Been a Beautiful Baby", "Jeepers Creepers", "The Gold Diggers' Song (We're in the Money)", "That's Amore", "There Will Never Be Another You", "The More I See You", "At Last" and "Chattanooga Choo Choo" (the last of which was the first gold record in history). Warren was one of America's most prolific film composers, and his songs have been featured in over 300 films.