After ten weeks of competitive dancing spanning a variety of styles from the Cha Cha to the Quickstep to the Viennese Waltz and more, Alfonso Ribeiro & Witney Carson, Bethany Mota & Derek Hough, Janel Parrish & Valentin Chmerkovskiy and Sadie Robertson & Mark Ballas remain in the competition, but only one couple will be crowned "Dancing with The Stars" Season 19 champion. Will the injured frontrunner Alfonso Ribeiro break the two-and-a-half-year reign of women winning the Mirrorball? Or will Bethany Mota and record five-time winner Derek Hough bring home the trophy? With the four couples all receiving perfect scores from the judges this season, it is anyone's game. In the two-part finale, all will have one last opportunity to impress the judges and viewers.

Five remaining couples advance to the Semi-Finals and perform two routines during plugged/unplugged.

The six remaining couples on "Dancing with the Stars" will dance to a song and dance style voted on by viewers for "AMERICA'S CHOICE" night. For the first time ever, America has creative control of the couples' first dance, asking fans throughout the week via Twitter, Facebook and Instagram for their input on wardrobe, set design and visual effects. Each couple will perform two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles include the Argentine Tango, Paso Doble, Samba and Foxtrot. At the end of the night, one couple will be eliminated and five couples will move on to the semi-finals.

The 10 remaining celebrities dance to songs commemorating their most memorable year. Each couple will dance to a song of the celebrities choosing that encompasses a memorable time or experience in their life. These heartfelt performances promise to be some of the most exciting and emotional of the season.

The 12 remaining celebrities dance to their favorite songs on. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple will then perform a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam.