Celebrity Big Brother 2011, also known as Celebrity Big Brother 8, was the eighth series of the British reality television series Celebrity Big Brother and the first series of Big Brother UK to air on Channel 5. It launched on 18 August 2011 at 9 pm on Channel 5. It ran for 22 days concluding on 8 September 2011, making it the shortest Channel 5 series of Celebrity Big Brother to date. It was followed by the twelfth regular series of Big Brother, which launched the following night. In keeping with the celebrity theme, the first edition of OK! TV When Bruv Takes Over aired on 17 August, the eve of the launch night. Following intense press speculation, the exact line-up of celebrity house guests remained a mystery until the launch night. For the first time in the UK, the celebrity-based version of the show was staged prior to the main show. Previously, the celebrity version took place in January. Like Celebrity Big Brother 7, it was sponsored by Freederm. The series was won by Irish Traveller and reality show star, Paddy Doherty with Kerry Katona as runner-up.