Channel 5 have confirmed that former X Factor contestant Rylan Clark has been regularly leaving the Celebrity Big Brother house to go to rehearsals for the upcoming X Factor tour. For the last few weeks, and a change from the usual Big Brother rules of “no contact with the outside world”, Rylan has been taking choreography lessons outside the house. Channel 5 said the rehearsals were within the Elstree where Big Brother is located. “Rylan has rehearsed for his tour on site with a choreographer, escorted by a Big Brother producer,” Channel 5 said in a statement. The news of Rylan’s dissapearing act were revealed on Channel 5’s Matthew Wright Show. Former EastEnders actress Gillian Taylforth, who was voted off the reality show last week, was asked to describe how she kept track of time during her residency. “You don’t know what time it is,” she said, “you’ve got no watch.” “What we used to do, us women, we used to go outside and say, ‘right it’s getting a bit dark, it’s about picking up time from school, about quarter past three. “Then Rylan went out to do X Factor rehearsals… and when he came back he just asked somebody the time very quickly, like the driver, and we said to him when he got in, ‘quick, what’s the time?'” In the past, contestants have only been allowed out of the Big Brother compound for medical treatment or emergency dentistry. The series is due to end on Friday, with Clark the current bookies’ favourite to win. Clark reached the quarter-finals on the X Factor and will be under contractual obligation to perform on the arena tour, which launches in Manchester on Saturday.