FOUR COUPLES REMAIN AS THE COMPETITION HEATS UP FOR THE SEMI-FINALS, AND EACH MUST PERFORM TWO NEW DANCES, ON 'DANCING WITH THE STARS,' MONDAY, MAY 15

Special Judges' Challenge Finds Each Judge Paired With a Couple and Tasks Them With a Specific Challenge for Their Dance

Cheryl Burke Returns to the Dance Floor for a Special Performance

U.K. Sensation Calum Scott to Perform Two Songs

One Couple Will Be Eliminated at the End of the Night

"Episode 2409" - The four remaining couples advance to the Semi-Finals, as the competition heats up and the show edges closer to the following week's crowning of the coveted Mirrorball trophy, on "Dancing with the Stars," live, MONDAY, MAY 15 (8:00-10:01 p.m. EDT), on The ABC Television Network.

Each couple will dance two dances - one being a Judges' Challenge, in which Len Goodman, Bruno Tonioli, Carrie Ann Inaba and Julianne Hough have each been individually paired up with one couple, tasking them with a specific challenge for their dance, and the second being a style the couple has not danced to yet.

In addition, two-time "Dancing with the Stars" Mirrorball champion and Emmy-nominated choreographer Cheryl Burke returns to the ballroom with a special performance from her 30-city tour, "Love on the Floor." The live dance show kicks off its national tour of intimate performing arts theaters across the country on October 17 in Palm Desert, California.

As an added treat, breakout U.K. artist, singer and songwriter Calum Scott will perform his poignant version of Robyn's "Dancing on My Own," alongside a dance from pros Witney Carson and Artem Chigvintsev. "Dancing on My Own" has become a global sensation, quickly charting in over 34 countries on Spotify and hitting No. 1 on iTunes in 11 countries. Scott will also perform his new original song, "Rhythm Inside."

Each couple will perform a rumba, quickstep, jazz, tango, jive, Viennese waltz or foxtrot.

At the end of the night, based on scores and votes from last Monday, one couple will be eliminated.

For the Judges' Challenge, the couples will dance to the following songs (in alphabetical order):

Simone Biles & Sasha Farber - CARRIE ANN INABA - Jive - "Faith" by Stevie Wonder featuring Ariana Grande

Rashad Jennings & Emma Slater - BRUNO TONIOLI - Rumba - "Say You Won't Let Go" by James Arthur

Normani Kordei & Valentin Chmerkovskiy - LEN GOODMAN - Viennese Waltz - "Desperado" by Rihanna

David Ross & Lindsay Arnold - JULIANNE HOUGH - Foxtrot - "You Make Me Feel So Young" by Michael Bublé

For the second full dance, the couples will dance to the following songs (in alphabetical order):

Simone Biles & Sasha Farber - Rumba - "Skyscraper" by Demi Lovato

Rashad Jennings & Emma Slater - Quickstep - "Yes I Can" by Superhumans

Normani Kordei & Valentin Chmerkovskiy - Jazz - "What a Wonderful World" by Ray Chew Live

David Ross & Lindsay Arnold - Tango - "Castle on the Hill" by Ed Sheeran

The judges' scores from both dances will be combined along with viewer votes.

Hosted by two-time Emmy-winning host Tom Bergeron and Erin Andrews, "Dancing with the Stars" is the hit series in which celebrities perform choreographed dance routines that are judged by a panel of renowned ballroom experts, including head judge, Len Goodman, dancers/choreographers Bruno Tonioli, Carrie Ann Inaba and Julianne Hough.

For week nine, viewers may cast their votes for their favorite couples via phone during and up to 60 minutes after the end of the "Dancing with the Stars" broadcast in each time zone. Online voting at ABC.com at http://dwtsvote.abc.go.com/ and on Facebook at http://bit.ly/2o1VO7b is open for 24 hours, beginning from the start of each episode on the East Coast at 8:00 p.m. EDT/5:00 p.m. PDT and closing at 8:00 p.m. EDT/5:00 p.m. PDT on Tuesday evenings.

"Dancing with the Stars" is produced by BBC Worldwide Productions. Ashley Edens-Shaffer and Joe Sungkur are executive producers. Phil Heyes directs. "Dancing with the Stars" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. This program carries a TV-PG, L parental guideline.

About BBC Worldwide Productions

BBC Worldwide Productions is a key business under BBC Worldwide North America, the U.S. division of the main commercial arm and wholly-owned subsidiary of the British Broadcasting Corporation (BBC), BBC Worldwide. Based in Los Angeles, BBC Worldwide Productions develops and produces scripted and unscripted projects based on BBC formats/brands for cable and broadcast networks, as well as digital platforms. Key titles include "Dancing with the Stars" (ABC), "Getting On" (HBO), the limited series "The Night Of" (HBO), the upcoming game show, "Hypnotize Me" (FOX), and the recently announced "Top Gear America" (BBC America).