The first two contestants, one man and one woman, are eliminated. The show also includes a performance by Sean Kingston, a premiere video from Miley Cyrus, a performance by the cast of "The Lion King", and a tribute to Patrick Swayze.
The results show for Latin Night includes guest performances by Queen Latifah and the dance crew JabbaWockeez. The condition of Tom DeLay's foot injuries is updated, determining whether he will be able to continue in the competition.
Shakira performs two songs and the pro dancers give a preview of next week's Argentine tango and paso doble. The stress of the competition is seen in a taped segment, along with visits from the children of four contestants.
The contestants compete in the jitterbug and waltz in the first double-elimination week of the season. They also face off in a marathon-style mambo competition, and preview the following night's dance-off.
After a night of Waltz, Jitterbug and the first competition Mambo group routine, the remaining nine couples face their first Dance-Off double elimination as the eighth and ninth couples eliminated from the competition are announced.
In the second consecutive week of double elimination, two couples meet in a dance-off to save one of them. The show also features performances by Colbie Caillat and Rod Stewart, as well as a new song performed by Mark and Derek.
One of the five contestants is eliminated, and Michael Bublé and Susan Boyle perform. The 'Design-a-Dance' created through viewer voting is presented, and Kenny Mayne and Jerry Rice provide another installment of DanceCenter.
In the semifinals, each of the four contestants performs three individual dances - a ballroom dance, a Latin dance, and also the knock-out dance they've been rehearsing for a month. Background features on all four are also included.
One of the four semifinalists is eliminated, and performances by Alicia Keys, Leona Lewis and the Bee Gees are featured, along with a number from the upcoming musical film "Nine". The pro dancers also discuss the work involved in performing their own separate dance numbers.
The three finalists compete with two individual dances - including the freestyle - along with a megamix challenge in which they must perform three dance styles side-by-side with identical choreography.
Finalists Kelly Osbourne, Mya and Donny Osmond compete in their last dance to capture the mirrorball trophy. The season's eliminated contestants and some past inept favorites return with additional dances, Whitney Houston performs, Jeffrey Ross welcomes a new member to the Losers Club, and Jerry Rice has a dance-off against Michael Irvin.