Kendall & Kylie Jenner Sing Bieber at 'Breaking Dawn' Premiere | On Air With Ryan Seacrest

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To get into the holiday spirit Kendal & Kylie Jenner sang Justin Bieber's ""Mistletoe"" with celebrities walking the carpet at the red carpet world premiere of ""The Twilight Saga: Breaking Dawn - Part 1.""
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Kendall & Kylie Jenner Sing Bieber at 'Breaking Dawn' Premiere | On Air With Ryan Seacrest
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