Singer Kelly Osbourne, daughter of rock star Ozzy Osbourne, has been admitted to a drug rehabilitation clinic after abusing painkillers.
Kelly Osbourne became famous via fly-on-the-wall show The Osbournes
The 19-year-old entered a California clinic on Friday following tabloid newspaper claims about her drug use.
"She admitted it after a lot of twisting," her mother Sharon told CNN.
"The amount of pills I found in her bag was astounding," she added. Kelly's brother Jack, 18, underwent substance abuse treatment last year.
After appearing with her family in fly-on-the-wall series The Osbournes, Kelly had three UK chart hit singles including Papa Don't Preach.
Her debut album Shut Up spent just one week in the UK top 40, however, and she was dropped by record label Sony Music.
Last August she cancelled her European tour because of "health reasons".
Her parents had been due to promote the third series of The Osbournes on CNN talk show Larry King Live, but instead discussed their daughter's drug abuse.
She has had three UK chart hits including a duet with her father
Ozzy Osbourne, an admitted drug addict and alcoholic who has spent time in rehabilitation clinics himself, said he had asked Kelly repeatedly if she used drugs, but she denied it.
"I can't believe we were buying into it," he said.
Sharon Osbourne said Kelly entered Promises rehabilitation centre in Malibu "a couple of hours" before they appeared on TV.
"As usual with the Osbournes, you never know what's going to happen next," she said.