Derek Hough is really looking forward to the new season of at the show's new home on Disney+.The longtime judge walked the red carpet at the premiere of on Wednesday, held on the deck of the USS Midway aircraft carrier in San Diego, California. Hough spoke with ET's Nischelle Turner about the upcoming 31st season, and it's move to the streaming platform.«At first, I was like, 'Wha? What does that mean?!' But within 10 seconds, I was very, very excited about it,» Hough shared.