The Grease: Live
star's brother, Derek Hough, is expected to return next season as a pro dancer, and tells ET that it was time
for his younger sister
to leave the judges' table. "I think she did three great seasons, and it's time for her to go," he said. "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."