Carrie Underwood Kicks Killer Legs High In Skintight Spandex

CarrieUnderwood/Instagram

Carrie Underwood is burning off every last Christmas calorie. The 37-year-old country superstar and 2005 "American Idol" winner wasted no time after the holidays in promoting her 2020-founded Fit52 app, one that saw early users addicted and one that accompanies the blonde's March-released "Find Your Path" book. Carrie, who regularly appears in Fit52 promos, today appeared in a video shared to the brand's Instagram, and it didn't hide the world-famous legs. This girl's got it, she's powering up, and you can check it out below.

CarrieUnderwood/Instagram

Scroll for the kick action. Carrie, whose killer legs are now up there with her power voice, appeared on a deck of cards – Fit 52 is based on the 52 weeks of the year, but with a concept that not every day has to be perfect.

The post opened with a photo of the "Southbound" singer prepping a punch and in olive leggings, plus a black and muscle-flaunting tank. "INTERMEDIATE Quick Workout" was the announcement, with fans then encouraged to swipe right.

CarrieUnderwood/Instagram

The final frame, which showed four individuals, included Carrie at the bottom right-hand side, with the mom of two seen delivering a touch-down followed by a majorly high power kick, all executed with perfection.

"Got 20 minutes? Considering getting into a fitness routine in 2021? This is the sweat session for you. Grab a mat, a pair of dumbbells and get moving with @carrieunderwood, @eveoverlandfitness, @bodyenvy1, and @philcormier10," a caption opened.

"Try jogging on the spot" was another suggestion, with the app also reminding fans not forget cooling down.

Carrie, who this year admitted she starved herself on just 800 calories a day following her "American Idol" win, is now the picture of health, also somewhat of a fitness icon. The star is running her 2015-founded CALIA by Carrie athleisurewear line alongside juggling her career and motherhood, with 2020 seeing Carrie tell Women's Health that her workout time is a form of therapy for her.

"Busy moms, we appreciate you!" Fit52 captioned a photo of Carrie ahead of Christmas, seemingly picking the toughest one of them all.

CarrieUnderwood/Instagram

Carrie's bikini body doesn't get showcased all that often, but when it does, the internet goes nuts. This particular photo, showing the "Cry Pretty" singer inside her luxurious closet, caused a hoopla over the abs, but likewise the nifty laundry machines that Carrie actually has inside her closet. Fans noticed the exact same thing with a fall photo as Carrie shouted out the most "comfortable" pants ever.

Carrie spent Christmas cozy this year and with 2010-married husband Mike Fisher and the couple's two kids, Isaiah and Jacob.

Scroll for Carrie's lazy gift grab in painted-on pants!