Carrie Underwood Works Out With Adorable 5-Month Old Son Isaiah

The country star and new mom showed how she stays fit on Instagram on Thursday.

Carrie Underwood isn’t letting 5-month-old son Isaiah keep her from her workout routine!

The country star and new mom showed off her active lifestyle on Instagram on Thursday with a pic of her getting a workout in while taking baby Isaiah for a walk.

PICS: Carrie Underwood's Adorable Baby Boy Is Already Playing Piano!

"Sometimes you have to work your baby into your workout...but that's ok because the world is your playground!" Underwood wrote, adding the hashtags "#MonkeyBars," "#WorkoutAnywhere," "#StayThePath" and a link to CALIA by Carrie, the singer’s line of fitness lifestyle apparel.

Underwood shared a look at her workout, including jogging with her stroller and monkey bar pull-ups. The hard work is clearly paying off as the country singer stunned at the CMT Awards back in June and looked hotter than even in her new music video for "Smoke Break."

EXCLUSIVE: Watch Carrie Underwood's Brand New 'Smoke Break' Video