Ivana Trump surprised the housemates when she arrived tonight.
The former model entered the Big Brother house during the group's variety performance.
Sisqo, the magician, was shocked when he unveiled the 60-year-old socialite in place of his original assistant Lady Sovereign.
"Surprise!" Ivana announced, as Sisqo helped her down the stairs.
"I meant to do that," he joked. "You see, I really am a magician."
The other housemates clapped and introduced themselves to the new housemate, but were unsure what had happened to Lady Sovereign.
Celebrity Big Brother continues tomorrow at 9pm on Channel 4.
I wouldn't have had any idea who she was? I'd have mistaken her for the cleaning lady or something!