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Oops ... she did it again!

Britney Spears looks as fit as ever in the June issue of SHAPE Magazine. The songstress showed off her svelte shape in yoga poses for the mag. She sported a pastel multi-colored sports bra and lilac leggings that exposed her toned arms, sculpted abs, and defined legs.

In the photos, the blonde beauty stands in a warrior pose and bends backwards, holding onto her ankles in a contorted camel pose.

The singer needs to stay in tip top shape for her upcoming projects. She will be collaborating with will.i.am for her new -- still untitled -- album. The duo, who already teamed up for the songs "Big Fat Bass" and "Scream & Shout," have been meeting and locking in studio hours for the past three months. The former X Factor judge is also prepping for her new Las Vegas show that's slated to open this fall.

Britney told the mag that she follows the Nutrisystem program and does yoga regularly to stay toned.

"I'm doing 90 minutes of yoga twice a week in addition to a lot of cardio -- hour-long sessions three times a week with my trainer, Tony Martinez," she said in the cover story. "The [Vegas] performances won't be simple -- they'll be a massive party from start to finish. And to pull this off, I have to be in top condition and running at full speed."

By the looks of this photo spread, she won't have any trouble pulling it off.