In this video you'll see Ryan Seacrest and a Exclusive Preview including Jonas Brothers, Celine Dion, Steve Rushton, Demi Lovato and Anika Noni Rose, the voice of Princess Tiana from Disney's Princess and the Frog.
At the end of the video you can see the entire parade in a time lapse / tilt-shift video but if you don't want to wait, we have the second video with the time lapse part only.
Show Summary from TV.com:
Since 1951, when the great Walt Disney was still alive, Disney and Walt Disney World, have provided seasonal specials, to unite the family at Christmas time.
From 1982 onwards, a new idea came to the table, featuring the star acts of the time, and favourite characters of viewers young and old, their's no chance of boredom throughout Christmas Day, with the annual Christmas Day Parade held from the theme parks across America.