A cute little chiptune that shares its name with Harold Arlen's most memorable contribution to The Wizard of Oz soundtrack and sounds like something you might hear playing in the background of a Mega Man game can be listened to here.
I'd embed the song here rather than just link to it, but I don't know how to do that using Blogger. Harrumph.
Anyway, the track was created by an artist who calls herself venix. Hear more of her wonderfully cheerful chiptunes on her 8bitcollective or MySpace pages.