Kelly Osbourne has revealed that she relapsed after four years being drug and alcohol free.
The 36-year-old star became teetotal in 2017 after battling with addiction but took to social media to reveal that she had suffered a relapse and was "not proud of it".
In a candid Instagram story, Kelly - the daughter of Ozzy and Sharon Osbourne - explained: "This is a little hard for me to talk about but I've always promised you I will be honest with you about where I'm at and what's going on on my road to recovery.
"I relapsed, not proud of it but I'm back on track and I will be doing a podcast this week where I tell everybody about what's going on and what happened."
Kelly said that she's taking things "one day at a time" and wants to tell her fans the "truth" because she "never wants to lie" to them.
She shared: "I just want to let you know that I'm sober today and I'm going to be sober tomorrow.
"But I've truly learned that it is just one day at a time and I wanted to tell you guys the truth cause I never ever want to lie to you.
"Thank you so much for your support and love and you'll be hearing from me soon."
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Kelly recently revealed that she thinks she's "a f****** crazy person" when she is on her own for too long and felt she was fortunate to take a three-year break from work after her addiction battle.
The former Fashion Police judge said: "I am an addict. I am an alcoholic, I have ADHD and OCD. So when I am allowed to be left on my own with my own thoughts, I am a f****** crazy person.
"I was very lucky that I had the opportunity to go down the roads that I've gone to in recovery. It is an expensive road, I acknowledge that.
"I took three years off work and used every single bit of my savings I had left to pay for it. Literally I was in therapy every day for the first year. I was like, if I don't do this, if I don't give myself this one chance, I'm done."