On Tuesday night's 500th episode of Dancing With the Stars, the contestants were tasked with a unique challenge — recreating some of the show's most memorable dances from the past 20 years. But only Chandler Kinney and pro partner Brandon Armstrong had to recreate a dance originally executed by one of the judges.

Each couple first performed a tribute dance to one of the show’s previous performances and then the second half of the episode was filled with instant dance challenges.