Showing up as free right now. A quick search on Google says this was originally 240 MSP
http://marketplace.xbox.com/en-US/Product/Musical-Feet/a6d2f8fc-1245-4a7f-adfa-2dca49e0651a
http://marketplace.xbox.com/en-US/Product/Musical-Feet/a6d2f8fc-1245-4a7f-adfa-2dca49e0651a