The pop star posted a photo of herself looking beach-ready in a turquoise bikini on Sunday between takes for her new video, "WorkB---h."
"Gonna get my tan on in the desert in between shots on the #WorkB---h set today. It's HOT out here people!!!!" she wrote on Instagram.
The photo was the second snapshot from the video shoot over the weekend. The first post, from about 24 hours prior, shows the singer through a camera viewfinder in a yellow and black bustier and long black gloves.
Spears, 31, credits her toned physique to yoga alongside regular workouts with a personal trainer. "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," Spears said in the June issue of Shape.
In addition to preparing for a Las Vegas show, Spears is counting down the days, hours and minutes until the release of the new single on her website, which states simply, "All eyes on me." The single is due to drop Sept. 17 at 9:30 am ET.
Hot day on set... ;) A little dirty, little flirty, danced my ASS off. Stoked for tomorrow!— Britney Spears (@britneyspears) September 8, 2013