Episode 1 | Round 1

Special two-hour premiere episode introduces viewers to the celebrity contestants and their level of dancing skills before they face next week's elimination round.

Episode 2 | Round 2

Celebrities face-off against each other in season four's two-hour first elimination round.

Episode 3 | Round 2 Results

Former model Paulina Porizkova is eliminated from competition.

Episode 4 | Round 3

Contestants dance the Tango & Jive.

Episode 5 | Round 3 Results

Former Miss USA Shandi Finnessey is eliminated from competition.

Episode 6 | Round 4

Contestants dance the Paso Doble & Waltz.

Episode 7 | Round 4 Results

Talk show host Leeza Gibbons is eliminated from competition.

Episode 8 | Round 5

Contestants dance the Rumba and Samba.

Episode 9 | Round 5 Results

Former NBA star Clyde Drexler is eliminated from competition.

Episode 10 | Round 6

Contestants dance the Cha-cha, Jive, Samba Rumba, Mambo and the Paso Doble.

Episode 11 | Round 6 Results

Heather Mills is eliminated from competition.

Episode 12 | Round 7

Contestants dance the Quickstep, Waltz, Foxtrot, Mambo, Jive, Rumba and Samba.

Episode 13 | Round 7 Results

John Ratzenberger is eliminated from competition.

Episode 14 | Round 8

Couples try to master both a ballroom dance and a Latin dance in order to stave off elimination.

Episode 15 | Round 8 Results

Singer-actor Billy Ray Cyrus is eliminated from competition.

Episode 16 | Round 9

The final four contestants and their partners dance their favorite dances with new music and choreography.

Episode 17 | Round 9 Results

Ian Ziering and partner are eliminated from competition.

Episode 18 | Round 10

Laila, Apolo and Joey get one last chance to win over the judges and the audience.

Episode 19 | Round 10 Results

Olympic gold medalist Apolo Anton Ohno and partner are declared the winners of the fourth season of "Dancing with the Stars".