Summer is not yet over for singer and dancer Britney Spears. The 36-year-old has stunned her online followers after she showed off her toned physique with a post on Instagram.

On Sept. 10, Monday, Britney Spears posted a stunning photo of herself on Instagram, which earned more than 800,000 likes. In the post, the "Oops... I Did It Again" hitmaker can be seen posing in a brown and white zebra-patterned bikini along with a pair of white boots. It also comes with the caption that reads: "Couldn't make up mind... hair up or down???"

 
Fans of Britney Spears could not help but praise her sexy figure and how she managed to stay in shape even after giving birth to her sons, Sean Preston and Jayden James Federline, with whom she shares with rapper Kevin Federline, also known as K-Fed. She gave birth to Sean Preston in September 2005 and Jayden James in September 2006.

Nonetheless, Britney Spears' toned physique should come as no surprise. Back in August, the singer and dancer revealed she maintains her incredible physique by healthy food intake and rigorous regular workout.

In a series of Instagram post, the mother-of-two also showed fans how she keeps herself fit. She try to exercise at least five times a week despite her busy schedule, including two hours of yoga session each day.

Back in 2015, she also revealed that having two sons made it even more important to her to maintain a fitness routine.

"After I had Jayden [her second son], it was really easy for me to get back in shape, but five years later, I started noticing changes in my body," she said in an interview with Women's Health Magazine at the time. "My hips are a little bit wider because I've had kids. So it was crucial for me to be continuous with my exercise. Consistency is key," she added.

Aside from being physically active, Britney Spears is now busy prepping for her upcoming show at the Formula One US Grand Pix in Austin this October. She will be joined by singer-songwriter, Bruno Mars.

The "...Baby One More Time" is also busy working with her fashion line, which would include clothing, fitness apparel, accessories, and electronics. The said fashion line is set to be launched sometime in 2019, according to Racked. More details will be revealed soon.