Socialite Ivana Trump has become the 12th housemate in this year’s Celebrity Big Brother, making a surprise entrance on Friday night.

The 60-year-old former wife of businessman Donald Trump, appeared as the housemates were taking part in their ‘variety show’ task.

The task had already seen turns from most of the housemates – with Nicola, Heidi, Jonas and Katia performing a can can dance and Stephanie trying her hand at stand-up comedy.

After Vinnie and Stephen had performed a ventriloquist act and Alex and Dane had dressed up as Kylie and Jason to sing the 80s chart-topper Especially For You, Sisqo took to the stage to perform a magic act with Lady Sovereign as his assistant.

And having made the latter disappear after she was put in a box, he went to bring her back again – only for Trump to appear in the box, much to the amazement of the housemates.

Some of them, including Stephen and Heidi, looked genuinely shocked to see the new arrival while others, including Vinnie and Stephanie, appeared to take it in their stride.

Others were more concerned when Sov failed to reappear and began discussing what might have become of her. However she returned to the house a few minutes later.

Sisqo, meanwhile, carried Ivana down the steps of the stage once he had gotten over the initial shock. “You see, I really am a magician,” he joked.

Earlier in the show Trump told Davina McCall that she was looking forward to her time on the show – and admitted she would be a “high maintainance” housemate.

“How often will I be in the same room with so many people that I totally don’t know,” she said. “It will be a totally new experience.”