This isn't the first time that Farmer Klingenberg has serenaded his cows with a musical number. Earlier this year, he surprised them with a trombone rendition of the Lorde song "Royals," which, judging from the attention it got, was equally well-received.
While watching the cows' curious reaction to the farmer's songs is certainly sweet, there's real science behind this phenomenon. One study found that listening to music can actually boost milk production in dairy cows by helping them to relax.
And given what a stressful time the holiday season can be, who couldn't use a bit of that?
Watch the entire cow serenade below: