Derek Hough has spoken out about his sister Julianne Hough’s recent breakup with Chuck Wicks. He says she’s doing great after the split. He told People, "She's 21 years old and her career is skyrocketing right now ...img src="http://feeds.feedburner.com/~r/hollyscoop/entertainment/~4/N_4-o6vPrEg" height="1" width="1"/