Britney Spears practicing yoga to get in shape

Pop sensation Britney Spears is working out rigorously to get in shape for her Las Vegas residency later this year.

The 31-year-old 'I Wanna Go' hitmaker is practicing yoga alongside cardio exercises to get in perfect shape, reported Daily Star.

"The performances won't be simple, they'll be a massive party from start to finish. To pull this off, I have to be in top condition and running at full speed," Spears said.

"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 added.