Grab your glitterballs and join Tess Daly and Claudia Winkleman for a sparkling spectacular as all 15 couples hit the dance floor, together for the first time in a dance floor spectacular.
Every step counts, as the judges' scores from last week are combined with those from tonight's show. The celebrities are dancing for survival, as the two lowest-scoring couples will face the dreaded dance-off in Sunday's results show.
The pressure is on. No-one wants to be the first to leave the competition.
The show pairs a number of celebrities with professional ballroom dancers who each week compete against each other to impress a panel of judges and the viewing public in order to survive potential elimination. Through telephone voting, viewers vote for whom they would like to stay, the results of the poll being combined with the ranking of the panel of judges.
The show is broadcast live on BBC One on Saturday evenings, and is presented by Bruce Forsyth and Tess Daly. The judging panel consists mainly of Bruno Tonioli, Len Goodman and Craig Revel Horwood.