Credit: VH1; Jamie McCarthy/

Her cups runneth over...and her reps don't like it!

To help promote VH1's upcoming Dec. 5 special Divas Salute the Troops, pop singer Katy Perry, 26, was photographed posing like a pinup girl, an insider tells the new Us Weekly.

"But her team thinks her boobs look too big," the source says of the newlywed (whose bra size is 34D).

Another source confirms: "It's true. The ads are being redone!"

Indeed, on Wednesday, VH1 released the retouched promo shot (far left) featuring Perry's downsized chest.

PHOTOS: Katy Perry's Best Looks

It's not Perry's first cleavage controversy, either. In September, Sesame Street yanked her duet with Elmo after a public outcry over her low-cut dress.