Mark Wright had a "vicious" row with best friend James 'Arg' Argent and his cousin Elliott Wright during a family wedding.
The former 'The Only Way is Essex' star reportedly clashed with the the pair at his cousin Leah Wright's wedding in Alicante, Spain, earlier this month after the hunk and mum Carol demanded that his sister Jessica Wright had a go at singing on stage instead of Arg.
An insider said: "Other people at the wedding were shocked at how vicious things got and couldn't believe what they were seeing."
But fans of the ITV2 reality show hoping to see the argument on the programme will be left disappointed.
'TOWIE' bosses were not allowed to film Mark and his fiancée Michelle Keegan at the nuptials because he is no longer contracted to the show since departing in 2012 at the end of the third series.
The insider added to The Sun newspaper: "But while Mark and Michelle were at the wedding the whole time, producers couldn't film them and had to act like they weren't there."
Viewers of the programme saw part of the row when Arg and Jess clashed on Sunday night's show, but Mark and Michelle were nowhere to be seen.
The 27-year-old star was one of the original cast members on the programme when the show started in October 2010.
He has since gone on to star in 'I'm A Celebrity... Get Me Out Of Here!' and land TV shows including 'Mark Wright's Hollywood Nights' and 'Party Wright Around the World'.