Derek Hough and his sister Julianne Hough are reportedly returning for this fall's 23rd season of "Dancing with the Stars."

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People magazine and Deadline reported multiple sources have revealed Julianne will once again serve as a judge on the competition series, while her brother will partner with an as-yet-unknown celebrity for the show.

ABC has not publicly announced the siblings' casting yet.

"Dancing with the Stars" Season 23 is to premiere Sept. 12.