Best Friends Challenge with Justin Timberlake and Jessica Biel

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Jessica Biel and Jimmy Fallon try to guess Justin Timberlake's responses to a series of random questions in a competition to see who really knows him best.

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Best Friends Challenge with Justin Timberlake and Jessica Biel

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#BestFriendsChallenge

#JustinTimberlake

#JessicaBiel

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