Julianne, Derek Hough returning to 'Dancing with the Stars!'

Siblings Julianne and Derek Hough are returning to the season 23 of "Dancing with the Stars!".
The dance reality show saw Julianne serve as a judge on seasons 19 to 21. She appeared as a professional dancer on seasons 4 through 8, People magazine reported.
Derek, 31, has become a fan favorite throughout his 16 seasons as a professional dancer on the show. He most recently scored his sixth Mirror Ball trophy with Bindi Irwin on season 21.
The brother-sister duo will join brothers Maksim and Valentin Chmerkovskiy for the upcoming season.
Maksim, who is expecting a son with fellow professional dancer Peta Murgatroyd, is also a regular on the show, which will have pros Witney Carson, Sharna Burgess, Artem Chigvintsev, Lindsay Arnold, Sasha Farber, Allison Holker and Gleb Savchenko for season 23.

Olympian Ryan Lochte will compete on the show.