music used in happiest celebration tv ad

[William Scott]

Does anyone know the music/composer that was used in Disney's TV ad last year for the Happiest Celebration on Earth? The ad begins with B/W footage of Walt Disney opening Disneyland then shows all the new attractions at the Disney parks. About 2/3 of the way through the ad Tinkerbell is shown flying over all the Disney parks and there is a piano/keyboard piece playing. I think I may have heard the music played elsewhere so I'm not sure if it is an original Disney soundtrack. You can see the ad by going to this link: http://www.youtube.com/watch?v=6YxAuco8maQ
If anyone can help me with this question, I'd appreciate it. Thanks.