Kristen घंटी, बेल has joined forces with फ्रोज़न yogurt chain Red आम, मैंगो to help those in need. The हीरोस hottie was signing autographs at Red Mango's Weyburn Avenue Los Angeles location to aid "Invisible Children" on August 2. Meanwhile, Kristen attended the 2008 choice Awards yesterday evening...........
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