The singer, who looks stunning in a white swimming suit, says she's not ready for summer to end

By Marla Lehner
Updated August 20, 2012 05:20 PM
Courtesy Britney Spears

Britney Spears is white hot.

The happily engaged singer, who is working at her new gig on The X Factor, is clearly in great shape based on a new photo of the star.

Spears, 30, posted a picture of herself on Facebook, Twitter and Pinterest looking like a true California glamour girl, complete with a white bikini, toned body, sun-kissed skin, wind-swept blonde hair and a cool pair of shades.

“Y’all ready for summer to end?” the mom of two wrote to accompany the photo, but did not say when or where it was taken. “I’m definitely not!”

Luckily for Spears – who has been previously photographed in the same bikini – the summer doesn’t seem to be over just yet. The hot weather in Los Angeles is expected to last at least the rest of the month.

“She’s enjoying the last month of summer vacation before X Factor picks back up and she’s working again this fall,” a source tells PEOPLE of Spears. “She can’t wait!”

Spears also seems to be feeling a bit nostalgic if her Tweets are any indication. “Sometimes I wonder what this snake is up to these days… Anybody know where it’s at?” she asked on Twitter recently, referring to the famous picture of her performing “Slave 4 U” at the 2001 Video Music Awards with a huge snake around her neck.

She later posted an answer to her own question writing, “Snake update: I’ve heard she’s alive and well, and that her name is Banana! This makes me smile :)”

With reporting by JENNIFER GARCIA