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 Mehr interesting. not gd with ad libbing, so im just going copy some Anime song. the only Anime songs that i know oder remember that have a dance is the lucky star, sterne one and the haruhi one. any other suggestions? thanks