Rod Stewart and Jessie J performed on the premiere show. On 1 June 2013, it was announced that Aliona Vilani, Vincent Simone, Flavia Cacace and Erin Boag would all leave the programme. Aljaž Škorjanec, Emma Slater, Janette Manrara and Iveta Lukosiute, who partnered Johnny Ball in the first few weeks of series 10, would all join the cast. However, it was confirmed on 22 August 2013 that Anya Garnis and Kevin Clifton had joined the series, replacing Slater. On 2 September 2013, it was announced that a foot fracture injury meant that Natalie Lowe would not be able to participate that series, and she was replaced by returning professional Vilani. Series 12 (2014) The series started on 7 September 2014 with a launch show, followed by the live shows starting on 26 and 27 September. This series was the first not to be presented by Sir Bruce Forsyth after announcing his departure from the live shows on 4 April (he made his final regular appearance in this series' launch show). However, Forsyth would continue to present special editions of the show, such as Children in Need and Christmas specials. It was announced on 9 May that Claudia Winkleman would join the main show as co-presenter and that her duties would mirror the existing result show format, with Tess Daly taking over Forsyth's role as main presenter and Winkleman taking Daly's role as co-presenter. It was announced on 1 June 2014 that professional dancers Artem Chigvintsev, James Jordan and Anya Garnis would not be returning for the new series, although Garnis would remain on the show's choreography team. It was also announced that Tristan MacManus and Joanne Clifton would be joining the show's professional line-up. It was then announced in August that Robin Windsor had pulled out of the competition due to a back injury. Windsor was replaced by new professional Trent Whiddon. In week three, entertainer Donny Osmond joined the four regular judges, making the maximum score that week 50 points. Due to Winkleman's absence in weeks 6, 7 and 8, It Takes Two presenter Zoë Ball co-presented with Daly. Series 13 (2015) Strictly Come Dancing returned for its thirteenth series with a launch show on 5 September 2015, followed by the live shows starting on 25 and 26 September. On 23 April 2015, the list of professionals participating in the thirteenth series was revealed. Professionals from the last series