JD, from Ithilien Stables near New York, was clearly thrilled at his birthday celebrations and knew exactly what to do when his human friends sang to him.
As the song finishes, the steed perfectly blows out all his candles, before drawing his mouth back in what is unmistakably a big grin.
The stable workers around him were clearly thrilled, laughing and cheering as JD enjoyed his special day.
Happy birth-bray JD! (Sorry.)