Bryan Adams: "Reggae Christmas"
As a Vancouver kid of the '80s, I'm surprised that I had never heard of this song until just now. Perhaps Bryan Adams was making a bid to become a reggae singer? Who knows, but this video is something of a 1984 time capsule, what with Pee-Wee Herman, the original MTV VJs, and even a Mr. T doll.
(I first learned about this video on Stereogum, where Jon McMillan described "Reggae Christmas" as "one of the least necessary songs ever written". It's hard to argue with that.)