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Work B**ch!Britney Spears Keeps Flaunting Her Smokin’ Hot Bikini Body on Instagram!

Britney Spears, 34, is looking better than ever and she knows it!

Wearing a bright yellow two-piece, the "Toxic" singer posed poolside on Instagram over the weekend, showing off her incredibly fit bikini body.

RELATED: Kourtney Kardashian Shows Off Insane Bikini Body Before Justin Bieber Concert

"Just chilling," she captioned the sexy pic, which was shared with her nine million followers.

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Just chilling ☀️

A post shared by Britney Spears (@britneyspears) on

Showing off her flat tummy and toned legs, the mother-of-two is in the best shape of her life. While dancing on stage during her Las Vegas residency definitely helps her stay looking fabulous, Britney is also a huge fan of yoga, and has posted several pics striking a pose.

For more hot celebrity bikini bodies, check out the gallery below!