— Alan Carr (@AlanCarr) October 31, 2017
The chat show host caused a frenzy after he was pictured arriving at the bash dressed as Gemma Collins, in her most recognisable outfit to date.
“Happy Halloween babes, you’ve heard of the GC, now you’ve got AC. Why can’t curvy girls look great at Halloween?” Alan told his 5.25 million followers in a short clip.
With his dark tresses hidden under a curly blonde wig, the television favourite was deemed a doppelgänger for the TOWIE regular in the peach dress.
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Alan Carr channelled Gemma Collins' most famous look to date
Celebrities do Halloween
Tue, October 31, 2017
HAPPY HALLOWEEN! Here's a round-up of the best celebrity Halloween fancy dress outfits, old and new!
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Holly Willoughby and Phillip Schofield dress up for Halloween
You’ve heard of the GC, now you’ve got AC. Why can’t curvy girls look great at Halloween?
Alan’s outfit featured large shoulder pads and chain detailing down the front, just like Gemma, 36, had sported earlier this year.
“Happy Halloween! Channeling my ‘Woman Of The Year’ @missgemcollins #zombiegemma,” he added.
The micro-blogging site was soon inundated with comments, with one user posting: “@AlanCarr you have just won Halloween. Hope you're well Love!"
Alan Carr shared a number of snaps of his look prior to Jonathan Ross' party
David Mitchell pulled out all the stops, complete with coffin
Michael McIntyre boasted a skeletal arm as he arrived
Two others continued: “Alan Carr has just won Halloween,” and: “This is too funny! Love, love, love this!!”
“Watch out for the trap door,” someone else added, referencing her recent mishap where she fell through the stage at the Radio 1 Teen Awards.
Also in attendance at the party was comedian Michael McIntyre and David Mitchell, who went all out in a coffin and Dracula ensemble.