During the Holidays Around the World Celebration (Thanksgiving to New Years), Mickey's Jammin Jungle Parade at Animal Kingdom takes on a holiday theme and becomes Mickey's Jingle Jungle Parade. Basically the same parade with holiday decorations added to the floats and characters. You can see pictures here: Mickey's Jingle Jungle Parade at Animal Kingdom
Not a big deal. So if you are going to the park during this time, catch the parade or not. You will not be missing much. The parade at Magic Kingdom is ten times better. Go hit some of the rides, the lines will be shorter!
Have a magical day!