Celebrity Big Brother star Louis Walsh makes huge blunder live on TV before he enters the house

Celebrity Big Brother star Louis Walsh appears to have made a huge blunder live on TV as he entered the famous house - something that didn't go unnoticed by eagle-eyed viewers.

Louis has been reunited with his former X-Factor pal Sharon Osbourne, who entered the house first as a 'celebrity lodger'.

After getting out of his car, the music manager and TV star was interviewed by hosts AJ Odudu and Will Best, as is customary for each new housemate as they pass through the doors.

"You're through to the Big Brother house!" Will told him, as a reference to the singing contest he's best known for.

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Continuing the theme, he then asked: "So who are you going to be gravitating towards in there?

"Is it gonna be the boys, the girls, the over 25s or groups?"

Without missing a beat, Louis replied: “Mrs O. I’m with Mrs O!

"She’s gonna protect me."

Will and AJ looked visibly shocked by his answer, as we're normally under the impression celebs don't know who else is heading in as they enter the house.

Trying to style it out, AJ said: "Is she in the house?! She might not be in there!"

Louis then went on: "I heard she went in..."

Will then attempted to salvage things, adding: "Who have you been talking to?!

"It doesn’t matter!"

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The hilarious moment was INSTANTLY picked up by fans, with one tweeting: "Not Louis letting slip that he knows Sharon has already gone in."

Another wrote: "Someone’s getting sacked from #CBBUK after Louis found out he’s with Sharon."

Someone else said: "Yeah they’ve ruined it already by letting the celebs meet beforehand #cbbuk."

A fourth added: "I’m SCREAMING at Louis giving the game away that they all know who’s going in."

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Fingers crossed they’ll be able to stand up to the icons of yesteryear, who have produced some truly wild moments during previous runs on Channel 4 and Channel 5, from Megan McKenna having a meltdown over a potato through to ‘The Queen of Clean’ Kim Woodburn getting kicked out after calling her housemates ‘two-faced, chicken-livered s***s’.

Then there was the time Chantelle Houghton came in and convinced everyone she was a member of a famous band called Kandy Floss – only to go on and win the whole series as a fake celeb, also bagging a new partner after finding romance with Ordinary Boys star Samuel Preston in the process.

WE CAN'T WAIT!!!