Dancing with the Stars' judging leaderboard was topped by two perfect-scoring couples during Monday night's final performance show of the series' twentieth season.

R5 frontman Riker Lynch and actress Rumer Willis tied for first place on the leaderboard with their respective pro partners after receiving 80 out of 80 points apiece.

Monday night's finals featured each couple dancing their favorite routine again in the hope of earning a higher score than before in addition to the fan-favorite freestyle.

Riker and pro partner Allison Holker took the stage again with their Pirates of the Caribbean Argentine tango from Week 5. After previously earning 38 out of 40 points for it, DWTS judges Len Goodman, Carrie Ann Inaba, Bruno Tonioli and Julianne Hough scored them a perfect 40 this time around.

For Riker and Allison's freestyle, they performed a classic jazz number in which everyone wore top hats, however, they also introduced hip-hop throughout the routine. They earned 40 points for their freestyle.

Rumer and pro partner Val Chmerkovskiy decided to dance their foxtrot from Week 1 when Rumer was still nervous and tense onstage. After previously receiving 32 points for the routine, they racked in 40 perfect judges' points last night.

Rumer and Val's freestyle was a stripped-down sexy ballroom dance to show off Rumer's personality and strengths. They also received a perfect score of 40 from the judges.

U.S. Army veteran Noah Galloway and pro partner Sharna Burgess finished in third -- and last -- place on the leaderboard with 72 total points. The couple delivered a new and improved Argentine tango from earlier in the season that had received 30 points at the time, but they only managed to add on two extra points last night.

For their freestyle, Noah and Sharna danced a contemporary routine in dedication to his support system that helped him following his injury at war. The pair, like everyone else, earned 40 points for their performance.

During Tuesday night's Dancing with the Stars twentieth-season finale, the three remaining pairs will dance a 24-hour fusion routine to complete their judges' scores. One couple will then be crowned champions and walk away with the show's first-ever golden mirrorball trophy.

The three professional dancers in the running have never won a title before -- although Val has been in the finals three times.