Brian Dowling thinks Janice Dickinson will cause havoc on 'Celebrity Big Brother'.

The Channel 5 presenter says the outspoken model - best-known for her stint as a judge on Tyra Banks' 'America's Next Top Model' - will "take over the house" in the upcoming series of the fly-on-the-wall show.

Brian told new! magazine: "I've read that Janice Dickinson is going in. That bitch will take over the house. She's crazy, but in a great way."

The 33-year-old 'Big Brother' host - who took over from Davina McCall in 2011 - would also like to see Girls Aloud singer Nadine Coyle on 'Celebrity Big Brother'.

He commented: "Amazing! Get her drunk. Get her talking about Cheryl Cole."

Brian also revealed some secrets about the 2012 series.

He said: "I know the housemates will be more varied in age this year. And I heard something about couples going in, but I'm not sure if the other housemates will know they're a couple.

"There are some handsome ones going in. And a few ugly ones. Oops, I shouldn't say that!"

Openly homosexual Brian - who shot to fame after winning 'Big Brother' in 2001 and has been voted Ultimate Housemate - would like to see a gay relationship in the house this year.

He mused: "We haven't had a gay relationship. But I don't know if the nation is ready for that."