Britney is back in 'Shape' and flaunting it
- Photo: Shape/Promotional1 of 11
- Photo: Pacific Coast News2 of 11
- Photo: Vanessa Pacheco/Pacific Coast News3 of 11
- Photo: Fame Flynet4 of 11
- Photo: JP/JFXimages/WENN5 of 11
- Photo: Fame Flynet6 of 11
- Photo: Fame Flynet7 of 11
- Photo: Splash News8 of 11
- Photo: Fame Flynet9 of 11
- Photo: @britneyspears/Twitter10 of 11
The 31-year-old pop princess reveals her workout regimen, telling the fitness publication, "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."
It's certainly paying off for the former "X Factor" judge who also revealed that she follows the Nutrisystem program, a shake for breakfast and lunch plus a dinner of protein and veggies. Spears admits that it's tough for her not to over-indulge in treats with her sons, Sean and Jayden. "I try not to make those too often or I'll eat the whole bowl of dough."
While Spears' songs are most certainly on gym-goers playlists, what gets this "I'm a Slave 4 U" singer amped up? Spears tells Shape that she listens to Whitney Houston's "I Wanna Dance with Somebody" and Bruno Mars' "Locked Out of Heaven."
For more with Britney, check her out in Shape when it hits newsstands (and iPads) on May 20.
MORE FROM WONDERWALL:
Real 'RHOC' Dish
"Real Housewives of OC" star Shannon Beador dishes about her family, her relationship with Vicki Gunvalson and what to expect from the reunion!Watch Video »
Fall's Best Looks
New fashion trends are here! Take a look at celebrities rocking fall's best looks so far.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Shailene Woodley and the stars of "Divergent" chat phobias and on-set injuries at the film's world premiere.Watch Video »
Kaley Cuoco spends time with friends and family -- and lots of horses! -- in the wake of her breakup on this week's Celebs Gone Social.Watch Video »
Tats for Love
From Heidi Klum and Seal to Ryan Sweeting and Kaley Cuoco, see which stars got tattoos for love.Watch Video »