Julianne Hough Sexes Up Andy Samberg Lonely Island Track on ‘Lip Sync Battle’ (Exclusive Video)

The “Dancing With the Stars” judge faces off against brother Derek Hough on Thursday’s episode of the hit Spike show

Julianne Hough just had sex and she wants the whole world to know it.

In TheWrap’s exclusive clip from the May 14 episode of Spike’s “Lip Sync Battle,” the “Dancing with the Stars” judge belts out the Lonely Island viral hit “I Just Had Sex.”

The audience greets her with plenty of applause, while her opponent/brother Derek Hough can only look in a mixture of embarrassment and horror.

Even co-host Chrissy Teigen was left slack-jawed by Julianne’s gutsy performance that saw her working the stage with two shirtless male dancers.

Hough is a two-time champion on ABC’s “Dancing with the Stars” and played the female lead in the 2011 remake of “Footloose.”

Watch the clip above.