put them in a full type body suit and eliminate a few of those "grind squats" or whatever and there isn't a problem imo.
the real song is Beyonce singing "Single Ladies" put a ring on it blah,blah,blah
and the kids were clearly trying to dance like Beyonce
once again, if an adult would of just toned it down just a bit(dress,hips) it would of be almost exactly the same without all the "sexual" overtones.