Several changes were introduced this season, including an "Acoustic Week," in which couples performed either the rumba or the Argentine tango while the audience was brought closer to the dance floor which was elevated and made circular.

These guest judges were Hélio Castroneves, Kelly Osbourne, Emmitt Smith, Drew Lachey, Gilles Marini, and Mel B. Kristi Yamaguchi and Apolo Ohno also served as team captains for team dances.

Bristol Palin returned for the All-Stars season, where she was again paired with Mark Ballas.

Color key: Individual judges' scores in the charts below (given in parentheses) are listed in this order from left to right: Carrie Ann Inaba, Len Goodman, Bruno Tonioli.

Each couple performed either the paso doble or the tango, plus a rock and roll dance marathon for extra points.

Individual judges' scores in the chart below (given in parentheses) are listed in this order from left to right: Guest judge, Carrie Ann Inaba, Len Goodman, Bruno Tonioli Couples are listed in the order they performed.