The star got a little bit 'merry' on Sunday night
CBB took a weird turn on Sunday night when former Girls Aloud star Sarah Harding decided to BITE fellow housemate, Amelia Lily.
The singer was ‘feeling merry’ during one part of the episode, and stripped off to her black bikini to jump in the hot tub at 2am.
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But after heading back into the CBB house to hang out with pals Amelia, Marissa Jade and Jordan Davies, Sarah then gave the X Factor star a playful nip on the leg – to the shock of both housemates and viewers.

Sarah BIT her housemate during the bizarre episode [Channel 5]
Later Big Brother then called Amelia to the Diary Room to see if she was okay but the young singer laughed it off, saying: ‘I’m absolutely fine, it was a playful thing.
‘She didn’t do anything wrong but it was really quite funny. I love her, she’s class.’
More: CBB’s Paul Danan and Karthick Nagesan caught up heated in race row
But while Amelia took the whole thing in jest, viewers at home weren’t so impressed with Sarah’s actions and expressed their confusion on social media.
One fan tweeted: ‘If someone bit my leg I’d of drop kicked them! Why would you bite a leg!?’
More: WATCH! Sarah Harding and Amelia Lily sing Girls Aloud in HILARIOUS CBB Talent Show
While another said: ‘Sarah is making me cringe #CBB’.
And they weren’t the only ones…
Is sarah Harding ok? #cbb
— Emily Hills (@Emily_jh1) August 6, 2017
Sarah is so random #CBB #CBBUK pic.twitter.com/OzjNwuEWGb
— Jade. (@MissJadeW) August 6, 2017
Sarah #CBB pic.twitter.com/Xg2xFhXdO0
— Anthony (@AntMelia94) August 6, 2017
Sarah bit Amelia's leg #CBB pic.twitter.com/3OFwAX1gos
— Sarah Smyth (@SJS1983) August 6, 2017
Although some CBB fans thought the whole thing was hilarious.
Sarah 😂 #CBB
— Chris (@ichris139) August 6, 2017
imagine being called to the diary room to ask if you were okay after been bitten by sarah harding😂😂 #cbb
— erica🌈 (@lovemejauregui_) August 6, 2017
Sarah biting Amelia's leg and Big Brother calling her to the diary room to check she's alright is my new favourite thing. #CBB
— Alfie Sheldon (@AlfieS12) August 6, 2017
The way Sarah Harding got tipsy and bit Amelia Lily's leg… this is why we love Celebrity Big Brother😂😂😂 #CBB
— Darren (@BBFanDarren) August 6, 2017
Sarah entertained her housemates on what had been a pretty awkward night, after Shaun Williamson (Barry from EastEnders) won immunity from the first CBB eviction on Tuesday.
Helen Lederer, Derek Acorah and Paul Danan are also immune. Meanwhile Marissa, Sarah, Chad Johnson, Trisha Paytas, Karthik Nagesan, Sandi Bogle, Jordan Davies and Jemma Lucy could face the public vote.
Oh it’s all kicking off already…