Well Damn J Lo, young isn’t he!!! Eye Candy 24 year old Casper Smart is J Lo’s back up dancer. She got a thing for back up dancer, her second husband was a back up dancer also. J Lo and Casper have been rumored to dating for weeks now, but wait didn’t she go on a couple of dates with Bradley Copper too. We will have to let this one pay itself out to see of the rumors are true.