Amy Winehouse’s father is confident the singer is staying off drugs – and cites Kelly Osbourne as her guardian angel.

The Back To Black star checked into a rehab clinic in London earlier this year after a video showing the star allegedly taking a variety of illegal substances was passed on to British newspaper The Sun.

Winehouse has been spotted out partying since her time in rehab, but dad Mitch insists she is ‘clean’ – especially with pal Osbourne by her side.

He tells Closer magazine, “Staying out til 5am is what people her age do, she hasn’t relapsed. “If she’s with Kelly there’s no relapse. Kelly’s a drug counselor, so Amy’s completely safe with her.”

WENN