There's a reason why Britney Spears is looking so fabulous these days.

In a report from Independent released on Monday, a source said that the pop star has been working hard on her health to stay in shape for her personal life as well as for her exotic shows in Las Vegas. Apparently, Spears has a "swagger coach" who's been helping her keep up with her figure.

"She's just committing to eating clean and working out," the source said. "In turn she feels proud of herself."

The singer is also participating in other activities that have been beneficial.

"She's doing yoga, sometimes twice a day, and loves barre workouts too," the insider dished.

Meanwhile, Spears' stylist Soyon An previously told People that the pop star's wardrobe at her shows are getting much racier and will exude the singer's slender torso.

"There is a lot more skin showing in these costumes," An said. "We are also using more bodysuits than the previous iteration with a lot more stones and crystals...we wanted to create whole new worlds within the show for some of the new sections while giving new life to the sections that would remain intact from the previous version of the show."

The stylist also explained why Spears decided to change up her look at Planet Hollywood in Vegas.

"Britney wanted to take the costumes to the next level," An explained. "She looks better than ever and her body is in incredible shape. That means hotter, sexier costumes showing more leg, more midriff, more cleavage. The costumes on the new and improved show are the sexiest she's worn."

Spears will be performing in Vegas throughout the summertime. See details on how tickets can be purchased here.

Tags: Britney Spears Music