Get ready to start dancing! Tess Daly and Claudia Winkleman present the first live episode of this year's spectacular series. The celebrities have had two weeks to rehearse their first routine and tonight the 15 couples perform live. They're dancing to impress the viewers and our fabulous four judges, Darcey Bussell, Bruno Tonioli, Craig Revel Horwood and head judge Shirley Ballas. The judges will score each couple but no-one leaves this week. Instead their scores will be carried over to next week when the viewers get the chance to vote for their favourite couple. It will be a show packed with entertainment and drama with plenty of first-night nerves - the quest for glitterball glory has begun!