Celebrity Big Brother 2017 fans are sure they know who this new mystery celeb is

Celebrity Big Brother 2018 cast teaser

The latest Celebrity Big Brother 2017 teaser has been revealed - and some fans reckon they know exactly who it is.

The latest video clip posted to Twitter this afternoon shows a long haired lady talking to camera about getting trolled over her marriage.

"Trolls beware! This mystery #CBB housemate is having none of it. Any idea who this could be?" asked the official @BBUK Twitter account.

In a disguised voice, they say: "Who gives the trolls the right to comment on my marriage?"

Fans have suggested the mystery star could be Nicola McLean, who is widely rumoured to be entering the house this year for the All Stars twist.

The model, who previously appeared on the show in 2012, is reportedly set for a 'shock return' following recent personal problems.

A source told The Sun newspaper previously: “Nicola is going back into the CBB house. She’s had the worst two years of her life but now she’s feeling strong and she is desperate to let her hair down and have some fun in there."

Whether the speculation is right or not remains to be seen, with Channel 5 not officially announcing any names before launch night.

However they have confirmed that the new series of the show will indeed see a mix of former Celebrity Big Brother housemates as well as new faces.

Host Emma Willis will introduce us to the official new Celebrity Big Brother line up, made up of the returning housemates and new faces next week.

New stars rumoured include footballer Jamie O'Hara, X Factor singer Sam Callahan, rapper Ray J, Love Island's Olivia Buckland, recent Apprentice candidate Jessica Cunningham, reality TV regular Bianca Gascoigne and snooker ace Ronnie O'Sullivan.

Meanwhile, past 'all star' housemates who are rumoured to be returning include James Jordan, Jasmine Waltz American couple Speidi - Spencer Pratt and Heidi Montag - and Austin Armacost.

Celebrity Big Brother launches on Tuesday, January 3 on Channel 5 at 9PM.

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