Isaiah's first band rehearsal...as you can see he & his daddy were totally into it! #naptime #earmuffs #sweetdreams

A photo posted by Carrie Underwood (@carrieunderwood) on Jun 6, 2015 at 6:39pm PDT

Can't handle the cuteness! Carrie Underwood may perform for millions of fans each year, but the country crooner, 32, couldn't manage to keep her husband Mike Fisher and son Isaiah entertained on Saturday, June 6. 

The American Idol alum took to Instagram to share a sweet shot of her boys backstage "supporting" her during rehearsals. 

"Isaiah's first band rehearsal...as you can see he & his daddy were totally into it! #naptime #earmuffs #sweetdreams," she captioned the image of her infant son sleeping in the arms of his father, 35, who was also taking a nap. 

Fisher and Underwood welcomed their little bundle of joy in February and have spent lots of time with their little guy since. 

In May, the hockey star shared a shirtless pic in bed with baby Isaiah via Instagram, writing, "Me and my little man #lifeisgood."

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