Make a giant t**t of yourself playing Rock Band, US version
It's bad enough that people do this sort of thing behind locked doors, but playing Rock Band in Times Square is pretty much unforgivable. Nevertheless, there are obviously people willing to do it, as this MTV piece shows. Just learn to actually play an instrument, or something.
Still no date for Europe, and our spider sense is telling us you may be waiting longer than you think for it over here. Just a hunch.