Carrie Underwood stays fit as she works out together with her husband Mike Fisher

Carrie Underwood and Mike Fisher are working out together, but here it seems Mike is already winded while Carrie looks ready for some more rounds.(Instagram/Carrie Underwood)

Fitness is extremely important to Christian country crooner Carrie Underwood. Months after giving birth to Isaiah Michael, she is back to working out religiously.

This time though, Underwood is not working out by herself. She has recruited her professional hockey player husband Mike Fisher to be her fitness buddy, and the two have been working out on their stationary bikes.

Underwood shared a hilarious photo of her and Fisher, who was seen slumping on his own bike on her Instagram account (@carrieunderwood). "The couple that slays together...stays together! Working out is always better with a partner!" she wrote.

Fisher might appear winded, but Underwood looked like she could go on a couple of more rounds on her bike. Because exercise is so important to her, the songstress even teamed up with Dick's Sporting Goods earlier to create the fitness clothing line CALIA by Carrie Underwood.

While promoting the line, the new mother shared some motivational words in a YouTube video, where she told women to "stay the path" in achieving their dreams and goals.

"We are on our own journeys in different places and different speeds and it's all about to keep going, to keep pushing yourself a little bit further. You've got to start somewhere and you'll feel better about yourself if you just stay the path," she said.

Underwood explained that her new clothing line was created by the need to provide women with transitional pieces that will get them from the gym to running errands. "It's not all about the workout and it's not all about the cute little fluffy stuff. It's the kind of thing that you can basically wear all day. You can get done what you need to get done, and you can feel good and look good while doing it," she said.