Victoria Beckham greets fans with stick-thin arms as she arrives for one of her guest judging appearances on "American Idol." Photo: Charles Pullium, AP

Sorry, Madonna. You've got some major competition when it comes to bizarro, freakishly skinny arm photos.

Blame it on the lighting or camera flashes or angle or whatever, but Victoria "Posh" Beckham was showing some seriously scrawny arms as she shook hands with fans in Denver before the taping of an "American Idol" audition episode.

Beckham, who's serving as a guest judge on FOX's hit singing contest, has long been called out for her skeletal figure, but in this photo, she's practically disappearing.

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