This run of the show has a twisted fairytale theme, with the house having had a complete makeover to incorporate whimsical elements and a magical atmosphere. But will it calm the contestants down or turn it into a living nightmare?
With BB monitoring the housemates' every move 24 hours a day, there's bound to be a few nasty twists on the opening night, but what will they be?
Rylan Clark joins Emma later for Celebrity Big Brother's Bit On The Side, alongside regular panellist Luisa Zissman.
Celebrity Big Brother, C5, 9pm
Check out the pictures from the house here:
Copyright: Channel 5