Harris posted a video to his Facebook account of his energetic 4-year-old twins, Harper and Gideon, getting ready for school and breaking out into song.
"Good morning, everybody. I'm here, it's breakfast time. We're about to go to school, right?" the 42-year-old Tony winner asks his cute smiling children.
Gideon promptly takes over for dad with a rousing rendition of the Star Wars theme song. Next Harris moves the camera to Harper who begins to belt out into a chorus of "Good Morning" from Babes in Arms, which transitions into what sounds like an original piece about My Little Pony dolls.
"Is that even a song?" Harris asks the camera before shifting the focus to Burtka who says matter-of-factly, "I need some more coffee."
Watch their adorable family video here: