Britney Spears has truly put in work this summer.

The Las Vegas entertainer gave fans a sneak peek at her ultra-trim physique on Instagram late Wednesday night.

The “Work Bitch” singer wears a pair of skimpy black bottoms and a crop-top style sweater with her arms comfortably resting above her head. Spears’ rock-hard abs are on full display.

“Amazing amazing shoot with @jeffipsky today!” Spears wrote. “Been working hard this summer! So ready to bring it for the next round of #PieceofMe shows next week.”