Tess Daly and Claudia Winkleman present the first live episode of this year's series, with a line-up featuring the likes of Alex Scott, Emma Barton and James Cracknell. Having had only two weeks to rehearse their first routine, the 15 couples take to the ballroom floor for the first time. The celebrities are dancing to impress the viewers and the four judges, new judge Motsi Mabuse, Bruno Tonioli, Craig Revel Horwood and Head Judge Shirley Ballas.