Edgar Yipsel "Yip" Harburg (born Isidore Hochberg; April 8, 1896 – March 5, 1981) was an American popular song lyricist and librettist who worked with many well-known composers. He wrote the lyrics to the standards "Brother, Can You Spare a Dime?" (with Jay Gorney), "April in Paris", and "It's Only a Paper Moon", as well as all of the songs for the film The Wizard of Oz, including "Over the Rainbow".[1] Harburg was known for the social commentary of his lyrics, as well as his left-wing political leanings. He championed racial, sexual, and gender equality and labor unionism, and was an ardent critic of high society and religion.[2][3]