World of Dance Episode Rating Graph

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.

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.

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 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.

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 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.

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.

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.

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.

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.

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 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.

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 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.