Keeping With The Kardashians regular Jonathan and fellow US reality star Tiffany are among the celebrities who entered the house tonight.
Tiffany found fame across the pond in VH1 reality show Flava of Love.
Speaking about his housemate, former publicist Jonathan said: "Tiffany is hysterical, but she hasn't been on TV in like seven years, so I don't know if she's as funny as she used to be. I know she had surgery done which sucks because her face was so perfect for comedy. She could cry and laugh in the same breath!"
Jonathan, 41, also spoke about his BFF Kim, saying she was supportive of him doing the show.
"She knows that I'm doing a show, but she doesn't know who else is on it. We'll see how supportive she is when she gets the other Google alerts of the other people I'm with!"
CBB airs nightly on Channel 5.