NEW YORK -- Social media will be a big component of a new program announced by Disney Wednesday in which the company's parks in California and Florida will feature weekly surprise themes and events.

The "Limited Time Magic" program announced Wednesday will include impromptu concerts, dance parties, colored lighting, character meet-and-greets, new menu and merchandise items and other events at Disneyland in Anaheim, Calif., and Disney World in Lake Buena Vista, Fla., near Orlando.