Question: what is the story behind the song somewhere over the rainbow?
Answer: Yip Harburg's son and biographer Ernie puts the success of the song down to one key word, as he told Democracy Now: "It's a story of a little girl that wants to get out. She's in trouble, and she wants to get somewhere. Well, the rainbow was the only color that she'd see in Kansas. She wants to get over the rainbow.