Emma Willis hosts, and Rylan Clark is back on Big Brother's Big Mouth duty. Tonight the stars make their way down the runway and into the house – which has been given a very grand Renaissance makeover.
It might look like a palatial, luxury mansion, but past history tells us this experience will be anything but comfortable for the celebs putting themselves forward for the show.
How long will it take before the famous faces mess up their lavish surroundings? They might be used to cleaners and personal assistants, but in here they'll have to do it all themselves. They're at the mercy of Big Brother, how will they cope?
Celebrity Big Brother, C5, 9pm
Take a sneak peek inside the new CBB house below:
Copyright: Channel 5