Kelly Osbourne has revealed that she took heroin as a teenager because it was "cheaper" than other drugs.
The 36-year-old opened up about her substance abuse to hosts Jada Pinkett Smith, Willow Smith, and Adrienne Banfield-Norris on a recent episode of Red Table Talk.
She explained: "I kept getting sick and I had a really bad case of tonsillitis. They ended up having to give me some crazy surgery and then after that, they gave me Vicodin and that was all I needed."
Watch Kelly's appearance on Red Table Talk below:Unsurprisingly, the hosts were shocked by this revelation, and she continued: "I went from having every voice in my head going like, 'You're fat.' 'You're ugly.' 'You're not good enough.' 'No one likes you.' 'You don't deserve this.' 'People don't like you because of who your parents are'.
"And all of a sudden, every single voice was silenced and it felt like life gave me a hug."
Osbourne said that she had Vicodin for the first time when she was 13, and "it went very quickly from Vicodin to Percocet to Heroin eventually because it was cheaper."

Kelly has previously spoken candidly about her battle with addiction and said that she relapsed in April of this year.
She decided to stop drinking alcohol in 2017 after she hit "rock bottom".
Per The Sun, she said in an interview earlier this month: "I went away somewhere with my friend and people were by a pool, they were drinking champagne.
"It was champagne and it was like, 'I can have a glass of that'. And I had a glass and I was fine, walked away from it, didn’t have another one for a couple of weeks, didn’t even think about it.
"And then I was out with my friends and I was like, ‘I’m going to have a drink, I’m fine'. I had two drinks, I was fine.
"And then it started off from going having one drink here, one drink there to literally three bottles of champagne and 24 White Claws a day."

Kelly hasn't just spoken candidly about her battle with addiction, and she's also been honest about her impressive weight loss, which led to plastic surgery rumors.
Slamming the rumors, she said: "I want to make something very clear. I am not a liar. I have never had plastic surgery. At least not yet!!!!
"The only thing I had done [was] a bit of Botox in my forehead and jaw. And I had my top lip injected. That's it."