Dancing with the Stars - Season 18 (2014)

Julianne Hough returns to the show as a guest judge once again. In a change of pace the entire cast opens the show with a wild group dance. Then the contestants switch partners for the competition based on the home audience's Twitter votes. Scores are combined with last week's for next week's elimination. In a special surprise Derek shows off his first choreographed routine for the Macy's Stars of Dance.

The couples are back with their original partners and Donny Osmond joins the judges panel for Disney night. A few Disney characters find their way into some of the dances.

Redfoo joins the judges panel this week. Macys Stars of Dance return to perform Derek's choreography.

Ricky Martin joins the show for the always popular Latin night as a guest judge and performer. Injuries begin to take their toll especially among the ladies leading up to the team dance.

Mark Ballas opens the show with a vocal number. After performing their tradition dances, pairs of couples perform synchronized dances.

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Couples open the show with the Judges Pick round. Then the pros have the cuffs removed as they choreograph their free style dances. Finally we say goodbye to one of the finalists.

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Following a group dance by the entire cast James and Peta reprise last night's freestyle at the request of the Twitter audience. Iggy Azalea, NeNe Leakes, Code Simpson, Ariana Grande and Christina Perry perform. Each couple performs one of their memorable dances leading up to the finalists final competitive dance; the "24 Hours Fusion Challenge."