The contestants perform emotional routines that represent the most impactful years of their lives.

Five couples compete for a chance at winning the coveted "Len Goodman Mirrorball Trophy"; the finalists perform a redemption dance and an unforgettable freestyle routine.

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.

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

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

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.”

The 11 remaining celebrities dance to celebrate those things in life that give them pleasure. Each couple will perform a cha cha, Argentine tango, samba, Charleston, jive, jazz, Viennese waltz, salsa or quickstep, vying for America’s vote. At the end of the night, one couple will be eliminated.

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.”

11 celebrity and pro-dancer couples take on performances inspired by "Grease".

The two-night event continues as 11 remaining couples perform to hits from their high school proms.

The 10 remaining couples take a moment to reminisce as they perform dances inspired by a pivotal year that held great significance in their lives.

Cher performs; the seven remaining couples perform.

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

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 13 remaining couples performing choreographed numbers inspired by Disney Heroes.

This season's eight remaining couples return to the ballroom for a star-studded Janet Jackson Night. There will also be a double elimination as the couples battle it out to make it into next week's semifinals.

The six remaining couples dance to the music of Taylor Swift; guest judge Mandy Moore.

Each of the five couples take the stage to showcase two all-new performances as they fight for a spot in the finale.

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The nine remaining celebrities put on their Mickey ears and get ready to transform into some of their favorite Disney characters and perform to songs from classic Disney films.

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The seven remaining couples dance to hit songs from one of the bestselling music artists of all time, Whitney Houston; guest judge Billy Porter.

Seventeenth Season Premiere. The couples will perform a Cha Cha, Foxtrot or Contemporary routine. In the new format the show is transitioned to a one night two hour show. The judge's scores will be combined with the votes of the previous week.

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.

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.