The seventh series of Strictly Come Dancing commenced on BBC One on 18 September 2009. Bruce Forsyth and Tess Daly returned as presenters together with Craig Revel Horwood, Len Goodman and Bruno Tonioli as judges. Series 5 winner, Alesha Dixon, joined the judging panel, replacing Arlene Phillips. Darcey Bussell was a guest judge from the quarter final onwards. Series 6 winner Camilla Dallerup, series 4 winner Karen Hardy and Hayley Holt were replaced as professional female dancers by Aliona Vilani, Katya Virshilas and Natalie Lowe. The show on 7 November was filmed from the Blackpool Tower Ballroom for the first time since the Grand Final of series 2. Due to illness, Bruce Forsyth did not feature in the show on 14 November. As a result, Tess Daly took over as main presenter and Ronnie Corbett was a surprise guest. Strictly Come Dancing: It Takes Two host Claudia Winkleman took over Daly's normal role. The series was won by sports presenter Chris Hollins and his professional partner Ola Jordan.