Louis Walsh in epic live blunder as he reveals he already knows the Celebrity Big Brother lineup
LOUIS Walsh threw Celebrity Big Brother into chaos within seconds of the show going live.
The reality TV juggernaut returned for the first time in six years on ITV as it welcomed its most A-list faces ever into the house.
AJ Odudu and Will Best were on hand to welcome in 13 famous faces as they settled into the famous compound.
Whilst 12 of them will be staying full-time, the first person the enter the house was revealed to be a special celebrity lodger.
Media icon Sharon Osbourne was revealed to the the first through the doors after the star bagged a special deal to head into the show for just one week.
In her entry VT, Sharon declared that she was "so excited" to be a part of Celebrity Big Brother as she promised to be unfiltered throughout her short stay in the compound.
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Once Sharon was safely locked inside, bosses chose to send in her former co-star, The X Factor judge Louis Walsh as the first official housemate.
However, as soon as he left the car, Louis gave away that not only did he know exactly who was on the line-up, he had been privy to finding out who had entered before him.
As Will asked him about who he would be getting along with, Louis quickly replied: "Mrs O! I'm with Mrs O!"
He famously referred to Sharon as Mrs O during their time as judges on the former ITV singing contest.
As the hosts flapped to cover up that she was in fact in there, Louis added: "She's going to protect me."
AJ could be heard saying: "She might not be in there!"
Attempting to play it off, Will then referred to a hypothetical scenario in which Sharon could be in the house but Louis told him he KNEW she was already in there.
He said to the host: "I heard she went in."
AJ and Will both pulled an awkward face down the lens of the camera as they attempted to move on from Louis' comments.
The celebrity housemates are meant to be unaware of each other's identities until they first step foot inside the house.
Celebrity Big Brother line-up
So who are the 13 stars expected to appear in the Celebrity Big Brother house? The Sun's Jamie Downham takes a look...
Sharon Osbourne - TV legend - who is thought to be on a megabucks deal - said she was doing the show for "a good time not a long time"
Louis Walsh - Irish boyband manager who has never knowingly backed down from a fight. Sure to be a huge presence in the house.
Ekin-Su Cülcüloğlu - We know from Love Island, the Ek-ster is not above throwing about some dramatics to claw her way to the final.
Levi Roots - Reggae Reggae Sauce sauce packs a bit of a kick, but its inventor seems quite mild-mannered. Will that change under pressure?
Fern Britton - The former This Morning star called out Phillip Schofield - don't think she won't do the same to anyone who tangles with her.
Colson Smith - You'll probably know him best as Corrie's Craig Tinker - but prepare to find out he's not much like his character.
David Potts - Ibiza Weekender's breakout star is sure to bring a bit of the party isle to the house... but will people appreciate it?
Gary Goldsmith - Kate Middleton's uncle is a big signing for ITV, but very much an unknown quantity among viewers.
Marisha Wallace - Top Broadway star may fill the brief of 'American who doesn't know what they've let themselves in for'.
Nikita Kuzmin - The Strictly pro is coming onto the show fresh off the show's tour. Poor lad probably just wants a rest.
Zeze Mills - the social media star has a "no holds barred interview style" - which is just what we need in there.
Bradley Riches - The actor played sweet James McEwan in Netflix hit Heartstopper. We'll soon find out what he's really like.
Lauren Simon - She's a Real Housewives of Cheshire star and you don't get on that show by being shy and retiring.