Britney Spears Flaunts Bikini And Confirms Las Vegas Shows

'Scream & Shout' singer takes to the cover of Shape to show off her performance-ready body.

Ground control to Britney Spears: prepare for landing. In a whirlwind of prepping her upcoming album, teaming up for's LP and finishing up her work on the "X Factor," the pop princess is finally settling down... in Las Vegas.

In her cover story for June's Shape magazine, Brit confirmed her rumored residency in Sin City, slated for this fall. The singer admits it's going to be a lot of hard work.

"The [Vegas] performances won't be simple," she teased. "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."

Top condition? Although we thought Spears was already killing it in the bod department, she might have to kick up her workout routine.

"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.

The magazine's cover has Britney in a strappy white bikini, with her hair wavy and golden as she bounces her head to the side, flashing a smile. She shows off her performance-ready body, complete with glowing skin and a little ice.

Sharing her secrets, she told the magazine she's cutting back on the cookies, to her sons' dismay, but is also toning up with food-program Nutrisystem. For gym motivation, she listens to Whitney Houston and Bruno Mars.

Spears isn't new to intense Vegas performances — she took over the city in 2011 in her Femme Fatale era.

Besides looking forward to the Vegas residency, fans can also anticipate the singer's eighth album, which is executive producing.