Julianne Hough and Derek Hough Announce National Tour

Derek Hough and Julianne Hough are not just siblings but a brother-sister dancing pair who have seven "Dancing With the Stars" mirror ball trophies between them.

"We're so blessed and lucky that we had an amazing family," Julianne, 25, told ABC News. "We went to all the lessons with all of our older sisters and we slowly went into the ballroom."