Abs-olutely! Summer's Sexiest Six-Packs

From Nick Jonas to Jennifer Aniston to Shakira, see which stars are impressing with their taut tummies

LADY GAGA

A year after the singer showed off a curvier figure, having gained 25 lbs., Gaga returned to fit form, and flaunted her hot figure with a body-baring stroll through N.Y.C. on July 11.



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