Last month Dabitch tipped us to Take the lead addictive TV Remix, and now there is another viral - Take the Lead Virtual Dancer.
You are the choreographer and they supply 3 tracks to get down to. It's a shame that the remix mentioned above isn't one of the options.
The technology is similar to what was used in the Walk like John Cleese viral, used to promote the "Monty Python's Personal Best" DVD releases.
Perhaps this will be the next fad, like Subservient Blah Blah Blah was. ;)