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When it comes to celebrity hair color, we might as well bow down to Tracey Cunningham. The Los Angeles-based colorist is behind the light-infused strands of many of Hollywood’s best heads of hair. And though she has become particularly known for blondes over the years — amongst the famous faces to grace her chair at Meche salon include Khloe Kardashian and Gwyneth Paltrow — Cunningham is also quite the expert with brunettes (Jessica Biel) and redheads (Emma Stone).
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