In preparation for Earth Day, some of kids' favorite Disney Channel stars visited TreePeople in Los Angeles. The kids planted trees and shared ideas on how kids can help protect the environment. In attendance at the special event were: Emily Osment ("Hannah Montana"), Mitchel Musso ("Hannah Montana," "Phineas and Ferb"), Selena Gomez and David Henrie (both of "Wizards of Waverly Place"), Jason Dolley ("Cory in the House," "Minutemen"), Alyson Stoner ("Camp Rock," "Phineas and Ferb") and Maiara Walsh ("Cory in the House"). Each of the stars also came up with a green tip to share with Disney Channel viewers.

Disney will also celebrate Earth Day with the younger age set. Playhouse Disney (the programming block for preschoolers) will feature environment-themed episodes of hit series, including a new episode of Handy Manny, and offer Earth Day tips for preschoolers, Tuesday, April 22 (6:00 a.m.-12:00 noon, ET/PT). In between episodes, the charismatic monkey hosts Ooh and Aah will call themselves "The Green Team" and show viewers how to keep the earth clean.

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