Ashley Tisdale and Hellcats costar Heather Hemmens pose with two CityYear volunteers during the City Year Los Angeles’ Spring Break event late last month.

The event raised over $1M for the organization, which plans to expand in the 2011-12 school year. Awesome!

Taking place at the Sony Pictures studio lot in beautiful Culver City, celebs included Emma Stone, Garrett Hedlund and Booboo Stewart, among many others with live performances from Keri Hilson and LMFAO.

Want to learn more about CityYear? Log on to their official website!