This used to be on iTunes, then it was removed only to be added again. However, when it was added the second time the tracklisting got mixed up, and the songs don't match their titles. This is the correct tracklisting. 1. Get It Off (That Kid Chris Club Mix) - 8:15 2. Knock Knock (Planet Funk Club Mix) - 8:37 3. Get It Off (That Kid Chris Mixshow) - 5:50 4. Get It Off (That Kid Chris Dub) - 8:56 5. Knock Knock (Plant Funk Instrumental) - 8:36 6. Get It Off (That Kid Chris Edit) - 4:02 I suggest getting track two (which is really the Knock Knock Club Mix), and then take your pick on which version of Get It Off you'd like, depending on if you're a full club mix, mixshow, radio edit, or dub person.