It looks like Carrie Underwood isn’t the only one keeping up a fitness regimen after the birth of son Isaiah — hubby Mike Fisher is by the superstar's side through the burn!

Underwood posted a selfie mid-workout on July 9 wearing a makeup-free game face, with Fisher in the background looking either highly focused or highly exhausted (we’re not sure which). Either way, having a workout buddy is always better than going it alone, the singer insists.

"The couple that slays together ... stays together! Working out is always better with a partner! #StayThePath" Underwood writes, pushing her fans to keep up the good work.

The #StaythePath hashtag is part of her promotional campaign encouraging others to get active, supporting her new line of workout gear, Calia by Carrie, which launched in March of this year. Underwood even uses one of the totes from the collection as a diaper bag!

The couple may have been getting in some exercise before a decadent anniversary dinner away from baby, as Mr. and Mrs. Fisher celebrate five years of marriage on Friday (July 10). After meeting at one of Underwood’s concerts in 2008, she and Fisher wed at a beautiful plantation in Georgia. They now live in Nashville, where Fisher plays for the city’s NHL team, the Predators.

Underwood is currently working on new music for her fifth studio album. Her latest single, “Little Toy Guns,” from her Greatest Hits album, recently became her 21st career No. 1. The superstar made her way back into the spotlight following Isaiah’s arrival at the CMT Awards on June 10, with an impressive live performance of the hit song. Fisher watched from the audience, beaming with pride.

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