with a launch show on 11 September 2010; three weeks later, the live shows started on 1 October 2010. Three new professional dancers were announced: Artem Chigvintsev, Jared Murillo and Robin Windsor. Darren Bennett, Lilia Kopylova, Brian Fortuna and Matthew Cutler did not return. The celebrities were revealed on 8 September 2010 and their professional partners were revealed during the launch show. Series 9 (2011) Strictly returned with a launch show on 10 September 2011, with the final in December at the Tower Ballroom, Blackpool. Bruce Forsyth and Tess Daly returned to front the main show, and Claudia Winkleman presented the Sunday night results show along with Daly. For Strictly Come Dancing: It Takes Two, a new presenter joined the team. Winkleman had to pull out of the 2011 series as it would be difficult to do a daily programme so soon after giving birth and was replaced by Zoë Ball. All of series eight's judges returned to the show. Jennifer Grey served as a cover judge for Len Goodman during week six due to his break from the show. This was the last series to feature Alesha Dixon as a judge after she left the show after the final to become a judge on Britain's Got Talent. The professional lineup was announced on 15 June 2011, with most of the Series 8 professionals returning except for Jared Murillo, who was replaced by Siberian dancer Pasha Kovalev. The celebrity lineup was announced on 6 September 2011 on The One Show and the couples were paired up for the first time on the launch show. Series 10 (2012) The tenth series began on 15 September 2012 with a launch show to reveal the celebrity-professional partnerships, and the live shows began on 5 October. On 25 April 2012, it was confirmed that Darcey Bussell would be joining the judging panel, replacing Alesha Dixon who left the show to be a judge on Britain's Got Talent. Katya Virshilas was the only professional dancer not returning this series, and she was replaced by Burn the Floor Karen Hauer. The full lineup was revealed on 10 September during The One Show. Aliona Vilani was originally Johnny Ball's partner, but injury resulted in her being replaced by Iveta Lukosiute. Series 11 (2013) Strictly Come Dancing returned for its eleventh series with a launch show on 7 September 2013 and the live shows on 27 September 2013.