Oops! She did it again.

Britney Spears showed off her abs-olutly amazing physique in an Instagram photo posted Thursday.

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In the mirror selfie, the pop princess donned a white crop top and low cut shorts, which revealed her toned tummy and long lean legs.

"Good Afternoon," she simply captioned the picture.

Presumably the snapshot is a shout out to the haters, who accused Spears of Photoshopping a sexy poolside picture earlier this week to make her midriff appear skinnier.

"Just chilling," she wrote Sunday of the photo in question, which showcased her amazing bod in a tiny yellow string bikini.

Followers quickly pointed out that a part of the pool looked to be missing in the snap and suggested that the image had been digitally enhanced in Spears’ favor.

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"Photoshop at its worst. You have a great body Britney, you don't need that," a critic commented. "The gap in your back should be stone, not water. Bad photoshop," another wrote.