I don't know how much dancing he will do, but Hayden is playing Bob Dylan (under a dif name cuz Dylan threatened to sue) in the upcoming Andy Warhol/Edie Sedgewick biopic "Factory Girl"
So that counts as a song man at least, and who needs more than that as an excuse to gaze upon the wonder that is Hayden Christensen;)
with Sienna Miller who plays Edie
and why don't we wrap it up with a new "rear view";)