If you're referring to the dancer-cize like moves reminicent of NFL-type cheerleaders on Monday night football, you there are several suitable files, in particular "ROCKNROLL.BVH" on the Kim Weild correographed motion file collection which has been mentioned here several times. Unfortunately, I do not have a link to this - and the link in the readme file: http://www.smstudios.com/fl does not seem to work. There have been some other aerobic dancing type motion files posted for free at House of Moves and they also of course for sale there.