"He has a big, full head of hair," the 33-year-old dancer and DJ marveled of his son. "We don't know which way it lies just yet, so that's going to be interesting, but I'm just so proud of him for every little thing he does. From hiccuping to sneezing to waking up from his sleep -- everything is just amazing. It really is."
ET recently spoke to Holker about missing this season of DWTS and how "very sad" she is that Julianne Hough has left the show. Find out what she said in the video below.