It could well be a trick of the light, combined with an unflattering outfit choice.
But the usually immaculate Katy Perry was looking a little curvier than usual during a concert in Budapest, Hungary, last night.
The 25-year-old star took to the stage in a skin-тιԍнт silver rubber dress, which clung in all the wrong places.
Fashion faux pas: Katy Perry wore a somewhat unflattering skin-тιԍнт silver dress as she performed on stage in Budapest, Hungary, last night
With the material buckling around the waist, the figure-hugging design was definitely unflattering.
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Usually Katy looks a million dollars, but apparently even she has her off days.
Perry is also something of a gym fanatic, and has been working out extra hard ahead of her wedding to comic Russell Brand, who she is expected to marry before the end of the year.
Trick of the light? The outfit clung in all the wrong places
The star has been hitting the headlines recently after being axed from Sesame Street because the scenes, featuring her wearing a low cut top, were deemed too racy.
However despite the blow, it seems the California Gurls singer will be performing with puppets after all.
She is set to appear on The Fight Before Christmas, an all-puppet live action segment on an upcoming episode of The Simpsons.
From Sesame Street to Simpsons: Perry will appear on the first ever all-puppet Simpsons episode this December
Banned! Katy’s outfit was too risque for family-friendly Sesame Street
And The Simpsons seem to appreciate Katy’s naughty style, judging by the tongue-in-cheek statement from executive producer Al Jean to Entertainment Weekly.
He said: ‘In the wake of Elmo’s terrible betrayal, the Simpsons puppets wish to announce they stand felt-shoulder-to-shoulder with Katy Perry.’
Katy’s H๏τ N Cold duet with Elmo was banned after her low-cut costume was considered a little too risque for the children’s show.
In the Christmas-themed episode, Katy plays bar keeper Moe’s girlfriend. And she leads Homer and the gang in a rendition of The 39 Days of Christmas.
Celebrity chef Martha Stewart also appears in the episode, but in cartoon form.