Too "cute" to be true! The kids were so closely miked, that: you can hear the way they were almost out of breath trying to keep-up with Dick Van Dyke's backing track (I suspect the three of them weren't actually singing "live" together here, because the recording level for D.V.D.'s part as well as the brass of the orchestra sounds very much compressed and nearly mono; while the kids' vocals and strings have a lifelike immediacy about them the rhythm element of the mix doesn't).