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Christie Brinkley Shares Pics of Her Like many women, Christie Brinkley isn’t quite sure if she wants to embrace her gray roots or fend off the silver strands for a little bit longer. But her son certainly thinks they look “cool.” The supermodel, 69, shared a relatable post on Instagram this week and revealed that she’s still debating how she wants to handle the patch of gray at her roots. “Grey sky! Gray hair! The…