Before he was blacklisted for his politics Yip Harburg wrote lyrics all these songs but which one did win an Oscar for?

The correct answer is 'Over the Rainbow'. Harold Arlen composed 'Over the Rainbow' with lyrics by Yip Harburg for 'The Wizard of Oz' (1939). It won the 1940 Academy Award for Best Original Song and the song ranked first. on the American Film Institute's 100 Years...100 Songs (2004) survey of top tunes in American cinema. Other lyrics written by Harburg include 'Brother Can You Spare a Dime?; and 'April in Paris';