Kelly Osbourne claims her bad behaviour during reality TV show The Osbournes was the result of people expecting her to be horrible.
The 22-year-old admits she was unpleasant to be around, but believes she became this way partly because of her reputation.
Osbourne explains, "I pretty much became what people expected me to be. It made me really unhappy.
"I fed into that 'Kelly Osbourne - sex, drugs and rock 'n' roll daughter of Ozzy Osbourne' thing.
"You know, 'She's a bitch, she's a handful.' I was like, 'If they think I'm like that, I might as well be.' But I became so horrible to people that I had to change."