Thursday nights Lip Sync Battle, kept it all in the family, as Derek Hough battled little sis, Julianne Hough. Both professional dancers, the brother and sister are also on Dancing With The Stars together.

At first I was like, “Well… I know Dancing With The Stars is popular, even though I love So You Think You Can Dance way more… so eh.” But I should have known that professional dancers, used to choreographing spectacular productions with less than professional dancers, would put on a show.

Watch the videos below.

And what a production it was!

Derek Hough’s 1st song was a song his “mother used to sing to him as a child,” Macklemore’s “Can’t Hold Us.” And he kept up with the fast lyrics! His movements are crisp, natural in a dancer. His face is intense through the entire song, and he drops to the ground at the end.

Color Commentator Chrissy Teigen: “Someone rehearsed.”
Host LL Cool J: Move over, Ryan Lewis. How do you think you did?”
D. Hough: “Um. Perfect.”

Julianne Hough’s 1st song was “All About That Bass” by Meghan Trainor. I knew what her strategy was before she said it – to make her brother as uncomfortable as possible. She writhed and gyrated all over that stage, and then…

She brought out a special guest.

D. Hough: “It was wildly inappropriate.”

Derek Hough’s Can’t Hold Us vs. Julianne Hough’s All About That Bass | Lip Sync Battle

We have a sibling rivalry this week with Derek Hough and Julianne Hough. Derek Hough starts the battle out with “Can’t Hold Us” by Macklemore & Ryan Lewis feat. Ray Dalton. Julianne Hough appropriately comes back with her own performance of “All About That Bass” by Meghan Trainor.

D. Hough comes out during the props and backup dancer portion wearing white and a Sia wig to perform “Chandelier.” He and his dancers look like they are doing a group contemporary production on SYTYCD, and it was fantastic. The lip syncing part was completely passionate. J. Hough declared, “He’s never living this down.” Ah… siblings!

Oh. My. God. J. Hough came out with 2 shirtless and very fit male dancers, who were not above humping the floor to “I Just Had Sex” by Lonely Island. Her brother covered his face, especially during the “I did it with my penis” line. She crawled on the floor. She twerked. She rubbed up on a dancer. I’m pretty sure a dancer licked up her leg. She was ALL IN.

Julianne Hough’s I Just Had Sex vs. Derek Hough’s Chandelier | Lip Sync Battle

The sibling rivalry continues with Derek Hough performing a dazzling rendition of “Chandelier” by Sia. Julianne Hough brings the battle to a traumatizing close with “I Just Had Sex” by The Lonely Island.

And the winner is…

Julianne Hough on her Lip Sync Win

Julianne Hough brought the heat and traumatized her older brother, Derek Hough. What did Julianne think of her win?

Do you agree with the results?