Celebrity Big Brother 9 (UK)

Celebrity Big Brother 2012, also known as Celebrity Big Brother 9, was the ninth series of the British reality television series Celebrity Big Brother. It began on 5 January 2012 and ended on 27 January 2012. It was the second Celebrity series to air on Channel 5 as part of the channel's then two-year contract with the show and the ninth series of the show to air overall. The series was sponsored by Plusnet. This was the first of two series of Celebrity Big Brother to air in 2012.

The series was won by actress and television presenter Denise Welch.

Nicola McLean returned to the house for Celebrity Big Brother 19 as an All-Star, representing this series. She left the house in fifth place.

Adverts for the new series began being shown from 10 December, one featuring Shaun Williamson which began airing on 12 December. An advert aired on 20 December 2011, featuring former celebrity housemates Amy Childs, Jedward and Kerry Katona and presenter Brian Dowling on Channel 5.

The previous sponsor, Freederm did not return to sponsor the new series. According to their Facebook fanpage, this was because, as a company, they disagreed with actor Michael Madsen's recent direct-to-DVD films and as he was to become a housemate they decided not to renew their contract with Channel 5. Therefore, this series was sponsored by Sheffield-based ISP Plusnet.

Due to a large outcry from fans in the 2011 series for there being no live streaming, this series introduced a new show named Big Brother: Live from the House, which was scheduled to air after every eviction for one hour on Channel 5's sister channel 5*. On Day 15, Big Brother: Live from the House won 5* its highest ever rating since its launch in 2006, with 994,000 viewers tuning in to watch the live streaming. This has called for Channel 5 to re-introduce the 24-hour live feed.

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