Carrie Underwood posted the cutest Instagram video of her little boy doing yoga stretches with her. So that’s how she stays so fit.  #GymBuddy

The American Idol star’s gym partner was dressed in his PJ’s and looking very dedicated.

Two-year-old Isaiah Michael is such a good helper.

Take a look at what she said about it:

My workout buddy…mama’s in @caliabycarrie and the big man is in his fire truck PJs…whatever works! #StayThePath PS, please excuse my yoga form…I don’t do much yoga, but like to stretch…

A post shared by Carrie Underwood (@carrieunderwood) on Mar 22, 2017 at 4:06pm PDT