\"The boys found one of my old Tae Bo DVDs in a box of things and Jake thought he'd have himself a little morning workout!\" Underwood wrote in the caption next to the video of her son mimicking the movements on screen.

\"I may soon have myself a gym buddy!\" she added with the flexed biceps emojis.

\"PHOTO:
Amy Sussman/Getty Images, FILE
PHOTO: In this Dec. 6, 2022, file photo, Carrie Underwood attends the 2022 People's Choice Awards in Santa Monica, Calif.
>

Underwood and her husband, former hockey pro Mike Fisher, welcomed Jacob in 2019.

The couple also have a 7-year-old son together named Isaiah Michael Fisher.

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