The 24 Hour Fusion Challenge is a dance performed on Dancing with the Stars. A fusion of two other styles, it usually occurred during the second night of the finals. It was first introduced in Season 17 and was the final dance of every season before the winner is announced.
The 3 couples remaining have 24 hours to prepare a dance that fuses two dance styles (one ballroom dance style and one latin dance style) for judges points.
The members of the troupe will not dance with the couples in this round.