ABC News' Lawrence Dechant reports:
"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."
"That's been our entire life," she said.
Now the siblings are pairing up for a summer concert - bringing their live dancing skills to 40 cities across the U.S. and Canada.
"We just love performing in front of a live audience, connecting with the audience one-on-one," said Derek, 28. "And we work so well together."
The talented pair will not just be showing off their dancing skills, but also singing for their live audiences when the tour kicks off in May.
"We really want it to just be like a full-on show, not just a dance show," said Derek, who is competing on the current season of "Dancing With the Stars" with Paralympic snowboarder Amy Purdy.
Julianne is no stranger to singing and dancing, having starred in the 2012 movie musical "Rock of Ages."
Though they can dance, sing and tour together, Julianne and Derek are just like every siblings, with a few arguments here and there. The only difference is their arguments are over who gets the headline billing on a national tour.
"We are calling our tour Julianne Hough and Derek Hough Live on Tour [or] Derek and Julianne Hough [or] Julianne and Derek Hough," Julianne said. "I'm not really sure yet."
"It'll be on the same line," said her older brother Derek.