Derek Hough 's dream of "little dancing children" is about to come true.

The 'Dancing with the Stars' judge and his wife announced they are expecting their first baby together on Tuesday, July 22

Derek Hough and Hayley Erbert are dancing their way into parenthood! The "Dancing with the Stars" judge and his wife announced they are expecting their first child together in a heartwarming video shared to Instagram on July 22.