Grace will be celebrating her passage into adulthood with ALL the housemates as Big Brother has a treat in store for her tonight.
At the stroke of midnight, as Grace turns 21, Big Brother will call her from the House Next Door into the Diary Room. There she will be given her birthday present, which will be a key to the door of the main House.
The lucky lady will be allowed to spend a very special 21 minutes in the main House, where she'll be reunited with Aisleyne, Glyn and Pete and also meet Jennie for the first time.
She will be greeted with a song and a cake, but what will be the reaction of her fellow housemates? And how will Nikki cope as Grace gets VIP access to their old home and her beloved Pete?
Tune in to E4 just after midnight to find out...