Julianne Hough returns to the show as a forth judge and four new pros join the cast. But the new quirky stars steal the show.

Smokey Robinson performs; a couple is eliminated.

The couples perform a variety of dances, including the cha cha, the rumba, and the foxtrot, for the judges.

A couple is eliminated; Sia performs as Maddie Ziegler and Allison Holker dance; Nico & Vinz performs.

It was all glitz and glamour in the ballroom as the remaining couples danced to songs from their favorite movies.

The couples dance to songs commemorating their most memorable year; Colbie Caillat performs.

The celebrities will switch partners, dancing instead with pros who were selected for them by viewers who voted on Twitter.

International superstar Pitbull returns to the ballroom and for the first time joins Julianne Hough, Carrie Ann Inaba and Bruno Tonioli as a guest judge MONDAY, OCTOBER 20 (8:00-10:01 p.m., ET) on “Dancing with the Stars.” Pitbull will kick-off the night with a steamy performance of his hit single “Fireball” followed by the nine remaining celebrities performing to a mix of his hits and personal favorite songs. Dance styles will include Salsa, Rumba, Foxtrot, Tango and Jazz. At the end of the night, one couple will face elimination.

The couples perform one unlearned dance and a team dance to Halloween themes and songs.

The couples perform during dynamic duo night; the couples face elimination.

The results are announced from last Monday night's performances as 1 Celebrity and their Professional dance partner are eliminated from the competition and then week #8 performances are seen.

Plugged/uplugged night.

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Results from last night's show are seen and the winning dance team is announced!

The new season begins with 12 new celebrities that includes: Charlotte McKinney, Chris Soules, Michael Sam, Nastia Liukin, Noah Galloway, Patti LaBelle, Redfoo, Riker Lynch, Robert Herjavec, Rumer Willis, Suzanne Somers and Willow Shields.

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We don't have an overview translated in English. Help us expand our database by adding one.

Each couple performed to a song of the celebrities choosing that encompasses an unforgettable time, or truly incredible experience in their life.

The results are announced from last week's performances as 1 Celebrity and their Professional dance partner are eliminated from the competition. The celebrities perform live for the 4th time hoping to impress both the judges and the viewers at home.

The eight remaining couples celebrate the season with individual routines to spring break inspired songs plus a competitive team dance performance.

The seven remaining couples will perform an iconic number from a different time period.

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

The final three couples competed for the judges' scores and fan votes to win the coveted Mirrorball Trophy!

The remaining couples fused two contrasting dance styles and had less than 24 hours to prepare. At the end of the night, the winner of the Gold Mirrorball trophy was announced!

The twelve celebrities and their partners perform live for the firs time hoping to impress the judges and the viewers at home.

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Season 21, Episode 3

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Dancing with the Stars is back with its most dynamic cast yet and ready to hit the ballroom floor. Each couple will perform a Jive, Foxtrot, Cha Cha or Viennese Waltz, vying for America's vote for the first time.

The 13 celebrities dance to some of the most beloved television theme songs from the past and present. Each couple will perform a cha cha, Argentine Tango, jive, Paso Doble, tango, quickstep or Viennese Waltz, vying for America's vote.

The first elimination of the season takes place, based on combined viewer and judges' scores from weeks 1 and 2.

An exciting, brand-new theme night comes to the show, as the 12 remaining celebrities find themselves pitted against each other in a quest to keep themselves immune from elimination, as Face Off night comes to "Dancing with the Stars." Two couples will each be tasked with dancing the same dance style, but to different songs.

Florida Georgia Line, CMA Award winners for Vocal Duo of the Year, will perform their number one hits "Cruise" and "H.O.L.Y.," and Fitz and The Tantrums will perform "HandClap," from their self-titled album. Viewers will also have a chance to see the couples' dances from the previous night one more time. The show will be packed with never-before-seen footage, including extended training packages, exclusive interviews with the couples and judge, and the second elimination of the season takes place.

The 11 remaining teams perform a dance inspired by a Cirque du Soleil show, while Cirque du Soleil acrobats, aerialists, dancers and fire stick performers perform alongside them.

A surprise double elimination takes place and DNCE performs their new single.

The nine remaining celebrities will set out to leave a lasting impression with their dances as they commemorate their most memorable year.

The nine remaining celebrities ready themselves for Latin Night, with each celebrity performing either a rumba, salsa, samba, paso doble, cha cha or Argentine tango. Plus, Pitbull performs and joins as a guest judge.

The eight remaining celebrities dance to popular songs throughout the decades.

The seven remaining couples compete on a Halloween-themed night.

The six remaining celebrities will dance two show-stopping dances – one from some of the hottest Broadway musicals, and a second where they are paired up for a “Team-Up Challenge.”

The five remaining couples advance to the Semi-Finals in one of the show's tightest competitions ever. Each couple will dance two dances - one being a style the couple has not danced to yet, and the second being a Trio Dance, in which each celebrity couple will dance with a third dancer.

The four finalists each perform two dances – a Redemption Style dance, and a freestyle dance. In addition, Grammy Award-winning Train performs, plus a special performance from the upcoming movie “La La Land.”

All 13 couples rejoin for a high-energy opening number, and the Season 23 champion is crowned.

A new, dynamic cast of celebrities are ready to hit the ballroom floor. The competition begins with the two-hour live season premiere (which is also the show's 400th episode!). Each couple will perform a tango, cha cha, salsa, Viennese waltz, and quickstep, vying for America's vote for the first time.

After showcasing their first dances on last week’s exciting season premiere, the celebrities get another chance to impress the judges with a new style of dance, all the while knowing that one of them is going home at the end of the night, based on scores and votes from last Monday.

The 11 remaining celebrities are set to celebrate the allure of Sin City and take a gamble on dancing to some of the city’s iconic songs, as Vegas Night comes to “Dancing with the Stars.”

The 10 remaining celebrities will take a stroll down memory lane and celebrate with a dance to a time in their lives that left a lasting impression, as they commemorate their most memorable year.

The Disney spirit shines as Mickey Mouse, Minnie Mouse, Goofy, Donald Duck and Daisy Duck, among other numerous Disney animated legends, adorn the ballroom and the couples bring the magic of Disney to life.

The eight remaining celebrities will dance to songs from some of the most popular boy bands and girl groups throughout history, and the men and women will also compete against each other in team dances. Nick Carter is a guest judge.

Mandy Moore kicks off the night with an exciting opening number, then each couple will attempt to capture the spirit of a specific movie genre. As an added bonus, Dove Cameron, Cameron Boyce, Sofia Carson and Booboo Stewart perform a “Descendants”-themed medley.

The five remaining couples find themselves tasked with completing two full dances. In the first round dance, the pros will choose the song and dance style, and for the second, the couples will perform in a Trio Round with a new twist, in which the judges have chosen the trio partners.

The four remaining couples dance a Judges' Challenge.

The three remaining finalists each perform two dances.

A new champion is named!