Celebrity Big Brother's Ryan Thomas and Roxanne Pallett are said to be involved in a 'secret feud'.
The two soap stars are reported to be involved in a decade-long dispute, that all began with a dress.
They're alleged to have rowed at the British Soap Awards when Roxanne was playing Jo Sugden in Emmerdale and Ryan was appearing as Jason Grimshaw in Coronation Street.
According to the Daily Star, Ryan had tried to stop Roxanne wearing the same dress as one of his Corrie co-stars.
A source told the tabloid: "Ryan felt like he was doing the right thing by trying to look out for his friend. But Roxanne was surprised by the way he dealt with it. She didn't like his tone and refused to do what he'd asked."
The pair's arguments continued when Ryan apparently got involved in Roxanne's relationship with his co-star Richard Fleeshman.
The source spilled: "Ryan warned Richard that he thought Roxanne was up to no good, which wasn't true. Roxanne was furious she’d been painted out to be something she wasn't.
"In one conversation she asked Ryan, 'why are you interfering?' Ryan then told her not to speak to him. Things didn't improve after that."
In the house and (so far) the pair seem to have seen eye to eye.
But Roxanne's supposed attention seeking tactics have left other housemates unimpressed.
In tomorrow night's show, ex TOWIE star Dan Osborne and Love Islander Gabby Allen are seen complaining about her 'acting up to the cameras.
Alongside Dan and Gabby, celebs joining Roxanne and Ryan in the house are Hollywood actress Kirstie Alley and headline grabbing footballer Jermaine Pennant.
Also the house are model Chloe Ayling, comic, Radio and TV presenter Hardeep Singh Kohli, Married At First Sight star Ben Jardine, Human Ken Doll Rodrigo Alves and TV psychic Sally Morgan.
Rounding off the line up are American reality TV personality Natalie Nunn and finally rogue trader Nick Leeson.
Celebrity Big Brother continues nightly at 9PM on Channel 5.