The time has come for a third couple to leave Strictly Come Dancing, as Tess Daly and Claudia Winkleman present the results of last night's public vote and the judges scores.The votes have been counted and the two couples at the bottom of the leader board must perform in the dreaded dance off to save their place in the competition.The awesome foursome of Shirley Ballas, Darcey Bussell, Bruno Tonioli and Craig Revel Horwood will then decide which dancing duo will be saved and go through to next week, leaving the other couple to waltz out of the competition.There will also be a sensational group number from our professional dancers and a musical performance from American singer and songwriter Gregory Porter.