Julianne Hough returns to the show as a forth judge and four new pros join the cast. But the new quirky stars steal the show.

Alfonso and Whitney step down from the top of the leader board to reprise last night's dance at the judges request. Smokie Robinson is the night's musical guest. The new pros are introduced. One of the returning pros chosen by the audience is embarrassed by their DWTS audition video. Sadly, one couple is eliminated. Written by David Foss

Couples dance to the stars favorite songs. Oh, and Cari Ann falls off her chair.

This episode presents an A to Z of DWTS featurette and Mark Ballas's DWTS audition tape. Janel and Val per fore in the audience encore dance.

Couples dance to the themes and in costumes reminiscent of the stars' favorite movies. Kevin Hart fills in for Len as guest judge. One couple is eliminated.

Couples dance routines reminiscent of the stars' most memorable years. The television audience serves as the fourth judge in Len's absence.

The stars change partners based on audience voting for Switch-up night. In case that isn't disorienting enough they dance to obscure dance styles. But couples are spared an elimination this week. Jessie J joins the judges and performs in the opening number. Written by David Foss

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Couple perform dances inspired by famous couples vying for immunity from elimination and to avoid a dance off.

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U.S. reality show based on the British series Strictly Come Dancing, where celebrities partner up with professional dancers and compete against each other in weekly elimination rounds to determine a winner.