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Carrie Underwood, Calia Ad

Calia

If there's any hot mama who can teach us how to do it all, it's Carrie Underwood. (Especially if "do it all" involves some ultra-toning workout moves).

The singer stars in the latest campaign for her Calia by Carrie Underwood activewear line (well, naturally), and looks damn good in the first ad released for the fall-winter 2015 collection. In the snap, Carrie flaunts her incredible form while demonstrating an ab-tightening Russian Twist. Underwood, by the way, welcomed son Isaiah Michael Fisher with husband Mike Fisher on Feb. 27, which means her post-baby bod turnaround came in less than six months.

"Fitness to me—I've been vocal about it over the years—is a lifestyle. I just love how I feel when I feel good about myself. There's definitely a lot of me in the Calia line," Carrie shared with E! News back in June while giving us a behind-the-scenes peek at her campaign shoot.

She means it, of course: The singer remained active during her pregnancy, getting in weekly workouts (doctor-approved of course) with longtime trainer Erin Oprea.

Carrie's new "Stay the Path" campaign is inspired by her fans, many of whom share their own roads to wellness with the singer via social media. Even sweeter? Carrie sent handwritten notes to each follower whose message inspired the Calia ads.