Today only Amazon.com are selling Karaoke Revolution Party Bundle for the Xbox, for $12.99 reduced from $19.99 with free shipping if you add another $12.01 to your order.

This sounds like a fun game, it includes a microphone and is compatible with a DDR dance pad. This Xbox version also has downloadable tracks to go with the 50 that are already included, you can get a full list at the wiki.

If you don’t get the $12.99 deal straight away try refreshing a few times, seems Amazon is having issues.