It emerged earlier today that the singer has been secretly exiting the compound to practice for the X Factor tour, which starts the day after the final in Manchester.
Bosses have confirmed that the rehearsals formed part of Rylan's contract but insisted that he was banned from discussing the outside world with his choreographer.
"It was agreed before Rylan entered the Big Brother house that he would be allowed to rehearse for his tour twice on-site with a choreographer," a statement said.
"This was agreed on the strict understanding that he was not allowed to discuss events in the Big Brother house with anyone during such rehearsal periods.
"Rylan was escorted by a Big Brother producer at all times during rehearsal to ensure full compliance."
Some Celebrity Big Brother viewers called the move a "disgrace" and claimed that voters had been "manipulated" after news of Rylan's secret exits broke.
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