[erinp5]

Celebrity Big Brother has been extended to five weeks.

The show - which usually runs for 21 days - will now go on for 35 days, meaning the stars will be locked up under constant surveillance for more than a month.

Show bosses are said to want to make it a longer show due to the high ratings it brings in, as Channel 5 are said to describe it as 'jewel in their crown'.

A source who did not wish to be named told the Daily Star: "Stars will have to get used to the fact that they could be living in that house for 35 days instead of 21.

Celebrity Big Brother 2015 run extended to five weeks - is it too long?

"Previous housemates have said they were driven bonkers doing three weeks so heaven knows what they will be like being locked up for five."

Hollywood actor Gary Busey won the last series of the Channel 5 reality show in September, but now a whole new host of celebrities are planning to enter the house.

Axed X Factor contestant Chloe Jasmine has already claimed to have turned down the show - twice.

The next series is expected to begin at the beginning of January 2015.