The Celebrate A Dream Come True Parade runs along Main Street U.S.A at the Magic Kingdom. The show generally runs daily at 3PM, however this is weather permitting. During the parade, floats go up Main Street, decorated with different classic Disney characters on board, encouraging you to "Share your dreams". About half way up Main Street, the floats stop, and dancers that walk in front of them perform.
The show opened in 2009, after replacing a similarly themed parade. Effectively this is the same, but with a few updates and a new soundtrack. The show uses over 100 cast members. Whist this is a great parade for the kids to see, it can get a little boring after a while. It's a great opportunity to get on some of the busier rides in the park as a lot of people will be over at Main Street.