Kelly Osbourne fought back tears last night as she revealed a member of her family is HIV positive.

The television personality was introducing a performance by the Scissor Sisters at a benefit gig for HIV support charity Body & Soul in London.

She said the cause was special to her because a member of her family had been diagnosed with HIV.

Osbourne sobbed before leaving the stage.

She shot to fame on the reality TV show The Osbournes, which followed the antics of her father, rock star Ozzy Osbourne, and his dysfunctional family.

Osbourne’s representatives could not be contacted for comment today.

Wonder if it’s someone we know??