Hough opened up to ET last week about his sister, Julianne Hough, departing the show after serving as a judge for three seasons.
"I think she did three great seasons, and it's time for her to go," Hough explained at the Vanity Fair and FIAT Brand's Young Hollywood celebration on Feb. 24. "She's got great things on the horizon, and she's doing great things. Len [Goodman]'s coming back, and so, you know, I think four judges feels a little redundant anyways, so I think it's the right thing to do."
After joining the dancing competition in season five, Hough has only missed one season. While the performer insisted in 2012 that season 15 would be his last, he nevertheless came back. He was also originally not expected to perform in season 20 last spring, but producers worked around his schedule starring in the New York Spring Spectacular at Radio City Music Hall to allow him to compete with Olympic gymnast Nastia Liukin.