The ad opens with an obviously lonely monster called Frankie using his iPhone to record and rehearse a Christmas carol.
He then attaches some festive lights to his neck screws before heading to the town's Christmas tree to serenade his neighbours, to their initial horror.
Eventually, one child joins in his carol before the rest of the town does. The ad closes with the message: "Open your heart to everyone".
Amazon last week unveiled its own more overtly political Christmas ad, showing an imam and a vicar having tea together and finding problems in common.