Derek Hough Spills on Sister Julianne Taking Over 'DWTS' Co-Hosting Duties (Exclusive)

Derek Hough chats with ET's Nischelle Turner at the premiere of 'John Wick: Chapter 4' in Los Angeles, California. Derek reacts to his sister, Julianne Hough, co-hosting 'DWTS' next season and also shares his plans for his first dance at his wedding. 'John Wick: Chapter 4' hits theaters on March 24. 'Dancing With the Star' season 32 will stream on Disney+ this fall.