OK, "smile" might be overstating it a bit, but this video, for "Here Is My Co-Pilot" by Holly Throsby has a hypnotic allure due in no small part to the nifty song itself, which is off Throsby's forthcoming album Team. It's the choreography-in-a-racquetball-court, though, that leads me to post this here. Not at all kid-related, but safe for all. (Oh, and have you checked out the review of Holly Throsby's See!? You really should -- that one is kid-related, and also safe for all.)
Holly Throsby - "Here Is My Co-Pilot" [YouTube]