I walked into a brightly lit hotel suite to find Demi Lovato smiling and sipping on a Starbucks. She looked flawless: gorgeous, glowing skin, a cute outfit - the woman was radiant. Which makes sense, considering she is the newest spokeswoman for Tampax's Be Radiant campaign. Watch to learn more about Demi's line, her beauty secret weapon, and how she builds up her confidence.

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