Sofia Vergara tried and failed to crack a walnut with her buttocks on the season premiere of America's Got Talent on Tuesday and declared: 'It really hurts!'She was emulating one of the contestants - a Mr.
Cherry from Japan who broke a world record by crushing 79 walnuts with his behind in just 30 seconds.However there were 80 walnuts laid out on the stage so it was up to Sofia, 48, to try and break the remaining one with her own rear end.
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