A qualifying round.

Dance acts showcase their artistry, precision and athleticism in hopes of moving forward in the competition.

The qualifying rounds continue.

The final qualifying round.

The top qualifying acts from each division will choose a rival and face off in a head-to-head elimination duel. The judges will score each act based on their artistry, precision and athleticism, and the top scoring act from each duel will move forward in the competition.

The top qualifying acts from each division will choose a rival and face off in a head-to-head elimination duel.

The top qualifying acts from each division choose a rival and face off in a head-to-head elimination duel.

In this round, the top qualifying acts from each division will choose a rival and face off in a head-to-head elimination duel. The judges will score each act based on their artistry, precision and athleticism, and the top scoring act from each duel will move forward in the competition and be one step closer to winning a grand prize of $1 million.

Tap legend Savion Glover joins Jennifer Lopez to mentor the Junior Team Division, while Julianne Hough and brother Derek mentor the Upper Division on the first night of The Cut, when the divisions are cut to three acts each.

The top three highest scoring acts from each division move on to the divisional final; guest judges Mel B and Paula Abdul.

The top three acts from each division compete for a spot in the “World Final.” Misty Copeland, principal dancer of the American Ballet Theatre, serves as a guest judge; and Ciara acts as a guest mentor.

The top four acts take the stage for the last time; the top overall scoring act is crowned the Season 2 champion; performances from Les Twins, Kinjaz, and Keone and Mari.

The Qualifiers” continue. Acts have one chance to showcase their artistry, precision and athleticism.

The qualifying round concludes. The acts have one chance to showcase their artistry, precision and athleticism and new this season now must score an average of 85 in order to move forward in the competition and ultimately win a grand prize of $1 million.

Dance acts of all ages and genres face off in the final round of the qualifiers, showcasing their artistry and athleticism for three iconic dance superstar judges, in hopes of scoring an 85 or higher to move forward to the duels.

On the first night of the duels, top acts from the upper division face off against a rival in an elimination duel; with the new twist of redemption, the two highest-scoring eliminated acts will have the chance to compete for a spot in the next round.

The Duels” round continues with the new twist of Redemption. In this round, the top qualifying acts from each division will choose a rival and face off in a head to head elimination duel. The judges will score each act based on their artistry, precision and athleticism, and the top scoring act from each duel will move forward in the competition. In Redemption, the two highest-scoring eliminated acts have one final chance to compete for the last spot in the next round of the competition.

On the third night of the duels, top acts from the junior division face off against a rival in an elimination duel; with the new twist of redemption, the two highest-scoring eliminated acts will have a chance to compete for a spot in the next round.

"The Duels" round concludes with a new twist of Redemption! In this round, the top qualifying acts from each division will choose a rival and face off in a head-to-head elimination duel.

Derek Hough mentors the top six acts from the Upper division and Jenna Dewan mentors the Junior Team division as they face the deepest cut of the season; only the three highest-scoring acts from each division will move on to the Divisional Final.

Jennifer Lopez mentors the top six acts from the junior division and NE-YO mentors the upper team division as they face the most intense cut of the season; only the three highest-scoring acts from each division will move on to the divisional final.

The top three acts from each division vie for a spot in the world final; hip-hop dancer and entertainer tWitch is a guest mentor for the upper team acts; Jennifer mentors the junior team division; Derek mentors the juniors; NE-YO mentors the uppers.

On the season finale, the top act from each division and a wild card compete for the title of Best in the World and the $1 million grand prize; Derek and NE-YO perform with special guests; The Lab performs a very special tribute to Jennifer Lopez.

A new crop of incredible dancers compete to avoid elimination and qualify to move on to the next round.

The qualifiers continue with the competition turned on its head as Jennifer Lopez, Derek Hough and Ne-Yo surprise contestants who must first perform in a stripped-down warehouse to prove they have what it takes to move forward in the competition.

The qualifiers continue with the competition turned on its head as Jennifer Lopez, Derek Hough and Ne-Yo surprise contestants, who must first perform in a stripped-down warehouse to prove they have what it takes to move forward in the competition.

The qualifiers continue with the competition turned on its head as Jennifer Lopez, Derek Hough and Ne-Yo surprise contestants, who must first perform in a stripped-down warehouse to prove they have what it takes to move forward in the competition.

Select acts have one last chance to showcase their artistry and athleticism to earn a spot in the duels, where they'll battle for their right to perform on the "World of Dance" stage for the $1 million grand prize.

The duels begin, and the judges have picked which acts go head-to-head in epic dance battles for a spot in the semifinals; guest judge tWitch decides which acts battle in Redemption to earn a spot in the semifinals on the "World of Dance" stage.

The Duels" round continues with judges Jennifer Lopez, Derek Hough, NE-YO and special guest judge dancer and choreographer tWitch. This season, the judges have chosen which acts go head-to-head and acts won't know their opponent until they hit the dance floor, leading to some of the most epic dance battles the series has ever seen.

The Duels continue, and the judges have chosen which acts go head-to-head in epic dance battles for a spot in the semifinals. Guest judge tWitch decides which acts battle in Redemption.

The duels conclude with the judges having picked which acts go head-to-head in epic dance battles for a spot in the semi-finals; guest judge tWitch decides which acts will battle in redemption and earn a spot in the semi-finals on the stage.

The final six of the top 12 acts take to the World of Dance stage for the first time; the judges score each performance based on artistry, technique, choreography, creativity and presentation; the top two scoring acts move on to the world final.

In the season four finale of "World of Dance," the top four acts take the stage for the last time in the "World Final" with judges Jennifer Lopez, Derek Hough, NE-YO and host Scott Evans. Competing for the title of Best in the World, the judges will score their performances based on their artistry, technique, choreography, creativity and presentation.