Amazon's Deal of the Day is Just Dance 2 For Wii. Originally $39.99 it's just $25.99 today.
Here's the info that Amazon provides:
The original Just Dance game got the world dancing like never before, and now the #1 best-selling Music/Rhythm game for play on the Nintendo Wii system is back with Just Dance 2. This time around it will be just as easy to keep the party going with an all-star tracklist--more than 45 strong, plus downloadable songs--from different genres, as well as the hottest dance moves of today.
Hurry, this deal won't last long!