If you haven't seen Frozen yet, you really should. The animated film is being called Disney's best since the Lion King and the Mickey Mouse short put in front of the film is fun as well. I have to say I was more than impressed with the songs in the film, which didn't slow down the story, but rather added to it. There's also a twist or two.
Anyway, the animators snuck in a sly reference to the Country Bear Jamboree, specifically how folks might remember that CBJ had a Christmas overlay which featured, among many other things, Christmas Lights hung in the antler's of a certain Moose named Melvin.
There's no moose in Frozen, but there is a reindeer named "Sven", and during a certain scene there is a tree with strings of beads of ice that look a lot like Christmas Lights as the sun's rays reflect through them, and sure enough, Sven's antler become tangled in said strings, giving a striking impression of how the Christmas Lights used to be strung in Melvin's antlers.
Fans might also note that Sven and Melvin have more than a passing resemblance. During the CBJ Christmas Show, Melvin always wanted to sing the "Rudolph the Rednose Reindeer" even though he was the moose, and Max, the deer, was the more appropriate choice to sign that song. It should probably also be noted that the Country Bear Jamboree in Orlando no longer has a Christmas overlay.
There's other easter eggs, but I'll have to let you find them on your own.