From what I've read Wii Cheer isn't bad. Once you get past the Bratz aesthetic (although that would be admittedly hard), it's closer to a motion controlled Elite Beat Agents than a casual game (don't forget to calibrate).
But I understand that isn't much to boost the lineup.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs