At 4:15 on a beautiful Saturday afternoon, cast members and guests gathered on Main St. to sing Happy Birthday to Disneyland.

Here’s an excerpt.

“World of Color” will bring Disney animation to life like never before. Powerful fountains become stars of the show as they create the world’s largest projected water screen. Combining hundreds of magnificent fountains and sparkling colors with a kaleidoscope of audio and visual effects, “World of Color” takes water-infused entertainment to a new level of artistry. Your senses will be flooded (no pun intended!) as you are taken on an imaginative journey into the colorful worlds of animated Disney classics such as “Alice in Wonderland,” “The Lion King” and “Pocahontas,” along with Disney•Pixar films “Toy Story,” “WALL-E” and many more.
For months now, guests at Disney’s California Adventure have peered with curiosity into the lagoon near Paradise Pier. They’ve been watching the installation of the massive infrastructure and innovative technology that will create the stage for this extraordinary combination of music, animation and stunning water effects. Teams of Disney workers have built nearly an acre of superstructure to support the complex “World of Color” production. It’s longer than a football field and capable of settling on three levels – one for the performance, one under the water surface and one for maintenance.

“World of Color” features an unprecedented infrastructure of water effects, larger-than-life projections, lasers, fire, fog, surround sound, and stunning images. This technical wizardry, combined with classic Disney film sequences, will create a breathtaking experience for guests, as jaw-dropping effects sweep across the lagoon, soar into the sky, and rush toward the audience. It promises to be spectacular!

For more information on the expansion:

Source: Disney Blog.