VIDEO: Lea Thompson Boogies to Broadway's HAIRSPRAY on DWTS!

On last night's Dancing With the Stars, the nine remaining celebrities were tasked with switching their professional dance partners. International pop superstar Jessie J served as a guest judge alongside Julianne Hough, Carrie Ann Inaba and Bruno Tonioli. For the first time this season couples danced to new styles of dance including Hip-Hop, Burlesque, and Flamenco among others.

'Back to the Future' star Lea Thompson joined pro dancer Val Chmerkovskiy for a rousing performance of 'You Can't Stop the Beat" from Broadway's HAIRSPRAY. The couple received a score of 34 out of 40 points. Check out the performance below! This year is unprecedented in terms of the level of interactivity. #DWTSAllAccess will be available to watch every Monday on ABC.com/dancing and will offer six live streams from key positions at the show venue, allowing fans to choose views of the Red Room, judges' table, Sky Box, make-up mirror, a wide angle of the dance floor and a feed hosted by Dominic Bowden and DWTS alum Lacey Schwimmer that will highlight relevant social media conversations. Viewers on the West coast will be able to live chat with Bowden and Schwimmer during the broadcast. Throughout the season, fans will also have opportunities to participate in the outcome of the show, using social media to weigh in on everything from songs, dance styles, and even partners.

Two-time Mirrorball champion and actress Julianne Hough joins Len Goodman, Bruno Tonioli and Carrie Ann Inaba at the judges' desk. Hosted by Emmy® Award-winning host Tom Bergeron ("America's Funniest Home Videos") and Erin Andrews (sports host & "Dancing with the Stars" Season 10 finalist), "Dancing with the Stars" is the hit series in which celebrities perform choreographed dance routines vying for a chance to win the coveted Mirrorball Trophy.

Viewers may cast their votes for their favorite couples via phone on Monday nights during and up to 60 MINUTES after the end of the "Dancing with the Stars" broadcast in each time zone. Online voting at www.ABC.com and on Facebook at https://apps.facebook.com/votedwts/ is open for 24 hours, beginning from the start of each episode on the East Coast at 8:00 p.m., ET/5:00 p.m., PT and closing at 8:00 p.m., ET/5:00 p.m., PT on Tuesday evenings.

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