Britney Spears shows off her rock-hard abs while doing the SPLITS in sizzling gym selfie

By Kirstin Buick
01 May 2017

Baby one more time!

Staying in tip-top shape when you're a working mom of two boys is tough enough -- and having the whole world scrutinising your bod at in every poorly-lit paparazzi pic that hits newsstands certainly doesn't help.

Back at the gym.... stretch and run all the way ???????

A post shared by Britney Spears (@britneyspears) on

But Britney Spears, who faced criticism for her curvier figure some months back, has hit back at the haters in what must be the most satisfying way possible -- a series of sizzling gym selfies.

Back at the gym.... stretch and run all the way ???????

A post shared by Britney Spears (@britneyspears) on

The pop princess (35) showed off her ultra-toned tum in a sexy crop top, whil doing the splits in a series of steamy snaps she shared on Instagram. "Back at the gym.... stretch and run all the way," she captioned the shots.

Training keeps me motivated and inspired... but I'd rather be dancing ??

A post shared by Britney Spears (@britneyspears) on

Brit, who's mom to Sean (11) and Jayden (10) has jumped back into a gruelling workout regime to get into shape for her Las Vegas residency, Piece of Me, at The Axis at Planet Hollywood.

?

A post shared by Britney Spears (@britneyspears) on

According to MailOnline, Brit did "intense" 40-minute sessions three or four times a week with celeb personal trainer Tony Martinez.

"She loves all core workouts. She's a very tenacious women," Tony said. "She wants to get it done and get it done right."

The fitness guru, who's also trained the likes of Pink and Janet Jackson, also help Britney clean up her diet.

"I pretty much just wanted her to balance out her proteins, carbs, and fat. Everything pretty balanced in that aspect because she was doing a lot of cardio so I wanted her energy up the whole entire time."

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