Britney Spears Sizzles in Lime Green Bikini

Us Weekly

It's almost "Criminal" how good Britney Spears looks in a bikini.

PHOTOS: Britney's bikini body through the years

The 29-year-old pop star showed off her toned tummy and lean legs in a skimpy lime green two-piece in Rio de Janeiro, Brazil, Monday. Later that evening, Spears kicked off the South American leg of her Femme Fatale tour -- her 66th show this year.

PHOTOS: Britney's sexiest tour costumes

Spears was joined by her longtime love Jason Trawick, 39, and sons Sean Preston, 6, and Jayden James, 5, (with ex-husband Kevin Federline). She was also accompanied by her mother, Lynne, 56.

How does the princess of pop stay in such great shape?

VIDEO: Britney Spears gets catapulted inside a port-a-potty!

"I have a trainer. I run on the treadmill for 30 minutes," the star told Ryan Seacrest earlier this year. "We do a lot of cardio and running. He kicks my butt!"

PHOTOS: Britney's incredible life so far!

Spears also exercises with Trawick, who shed a whopping 50 pounds in two years. "We love to work out," she said. "We do stuff together like that. We take walks."

Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly

View Comments (398)