LADY Gaga, Nicole Kidman and Benedict Cumberbatch have the fakest celeb smiles, a poll found.
Many A-listers are accused of putting it on when they beam for fans on the red carpet.
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And Poker Face singer Gaga topped the list of the most insincere with 27 per cent of the vote
Some 15 per cent picked Kidman.
Fellow screen idol Kristen Stewart was on 14 per cent.
Ten per cent went for UK film star Benedict Cumberbatch.
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Will Smith, fresh from his Oscars slap storm, was fifth on eight per cent.
Brit movie favourite Olivia Colman had the most sincere smile on the list.
Just four per cent said it was fake in the poll by teeth service SmileDirectClub.
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Fakest celeb smiles
Lady Gaga (27%); Nicole Kidman (15%); Kristen Stewart (14%); Benedict Cumberbatch (10%); Will Smith (8%); Andrew Garfield (6%); Denzel Washington (5%); Javier Bardem (5%); Olivia Colman (4%).
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