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10 Most Stylish Stars, 21 + under

Hailee Steinfeld
The greatest thing about her post "True Grit" insta-stardom was watching the childlike (she is only 14-years-old, after all) glee that fueled all Hailee's fashion choices: from an enormous Academy Awards princess dress to a sleek pantsuit, I feel like we're watching her develop a sense of style -- and that's a fascinating prospect.