Despite being separated from the new arrivals by a glass wall, housemates screamed upon being faced with their first experience of the general public since entering the house.
"Oh Dave, I love Dave, I worked with him on Gladiators, he's the best guy in the world!" Ulrika shouted, after recognising one of the show's cameramen.
"I dare you to go naked on live TV, Nick," Victor said.
"I would be mortified!" Brian joked as Nick simply shook his head.
"They all know what's going on," Brian said angrily as they began to film. "They're all looking at us like, 'Little do you know'."
"We could really cause hassle now," Brian realised while Ulrika suggested she 'pull a moonie'.
Housemates then spotted BBLB presenter Emma Willis who began waving at them through the window.
"Oh look how excited she is, but then she doesn't have to walk up those stairs on her own, does she?!" Ulrika said.