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.

On Tuesday, "Dancing with the Stars" celebrated its 500th episode. In honor of the show’s milestone, each couple did a dance inspired by a performance from an earlier season of the show.