Dancing is something I enjoy, even though I am terrible at it. So, for me, anything that I know and inspires me to dance, is a good song to dance to! Lately, I love anything by Shakira. But the classics are definitely my favorites when going dancing.
I don't dance either but there's some stuff that makes me want to, like The Hives, some punk stuff like Buzzcocks and the Damned, indie/britpop like Kaiser Chiefs or Franz Ferdinand...
but it really just depends on your mood.
It should be
"You can dance if you want to"
"Dance, Dance, everybody look @ your pants"
"Dancing Queen"
"Dance Party"
"Dance Music"
"Can you dance?"
"I can't dance"
"You can't dance"
"Robot Dance"
"Dead Thread"
or "You Onion!"