During the 2000 Holiday season the Main Street Electrical Parade at the Magic Kingdom in Walt Disney World featured a Christmas soundtrack. This video features several clips of the parade. The parade itself featured nothing special for the holidays, just the sound track change. A Christmas version of the parade debuted at Tokyo Disneyland and also ran in Disneyland Paris. Tokyo Disneyland has a Christmas overlay for their Dreamlights Parade too.
Tokyo Disneyland – Electrical Parade Dreamlights Christmas overlay from 2016 –
A second video from 2016 –
Walt Disney World – December 2000 Videos: