Even pop superstars need to “cut loose” from time to time!
“It’s been a while since I’ve cut loose,” Spears, 34, captioned the video, along with a few smiley emojis.
Spears is dedicated to her workouts, and does it all on her own – no trainer required.
“Daily exercise is important for me both mentally and physically,” she previously explained. “I don’t mind working out. Trainers keep you motivated, but I don’t have a problem being motivated.”
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Spears – who starts up her Las Vegas residency again in October – chalks her hot bod up to all that dancing.
“Dancing is a great cardio workout – tough and fun at the same time,” she said.
But when that’s not enough (or when trips to the Cheesecake Factory happen), Spears hits the treadmill for a little bit of extra cardio.
“After Cheesecake Factory you do this… Treadmill and weights,” she captioned an Instagram video of her innovative workout.