any good anime dances?

going to an anime convention in september and since i didnt sing karaoke at the last one. my friends are forcing me to sing. so im thinking if im gonna sing i might as well do dance with it to make it more interesting. not gd with ad libbing, so im just going copy some anime song. the only anime songs that i know or remember that have a dance is the lucky star one and the haruhi one. any other suggestions? thanks