TV host Holly Willoughby says she's leaving Keith Lemon’s Celebrity Juice after what she called "12 years of fantastic chaos".

Willoughby, who is best know for co-hosting Good Morning Britain on ITV, was a team captain on the anarchic show and her exit had been rumoured for a while, but a new Instagram post on Sunday confirmed her departure. 

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"Thank you Celebrity Juice for 12 years of fantastic chaos… I can’t quite believe what we’ve done and how quick that time has gone," she said.

"Thank you to you all for watching..we’ve always had the loudest and best audiences. Also a huge thank you to ITV2 for believing in the show in the first place and for all of your support."

Willoughby appeared on the show from the very first episode in 2008 alongside Lemon, initially opposite fellow team captain Fearne Cotton until the latter departed Celebrity Juice in 2018.

"Keith Lemon … Where to begin…" Willoughby added. "I remember starting this journey with you and saying 'I think this might work’… my goodness me it did… three friends, you me and Fearne Cotton … and that is what is at the heart of it.. friendship."

She said she would return to the show as a guest from time to time and while her replacement has not been confirmed, actress Michelle Keegan has been tipped to take Willoughby’s seat.

"It’s time for me to hand over my team captain seat to some lucky lucky person," Willoughby said. "Whoever that is, know you are about to get one of the best jobs in telly working with one of comedy’s finest…

"I love the bones of you Lemon! Thank you for making me laugh for twelve years. I’ll be back as a guest and just to make sure someone is keeping you in check… if I don’t see you through a week or next week or the week after… know you are always in my heart…"

"I’ve had a lovely time working with you. You are the best! I hope I’m lucky enough to work with you again one day," Lemon wrote on his own Instragam, including a montage of the pair’s onscreen moments.

"If I don’t see ya through the week I’ll see ya through the window. Big hugs."

According to The Radio Times, Willoughby will appear in ‘lockdown specials’ of Celebrity Juice in the coming weeks, and is expected to exit as a team captain at the end of the current series.