Demi Lovato has a family secret! But what could it be? A famous grandparent? A family fortune? Or even an unknown sibling? Click through to find out ...
BING: What's Demi's big family secret?
FIND: Is Demi dating Wilmer Valderrama?
SEARCH: Get the latest on her Neon Lights tour
WATCH: Jam out to Demi's 'Skyscraper'
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