Kelly Osbourne: one of the Osbournes has HIV that causes AIDS

Kelly Osbourne shocked a London crowd Sunday night when she revealed that a member of her family is living with the virus that causes AIDS.

The daughter of rocker Ozzy Osbourne, who starred on the reality series The Osbournes, made the tearful confession at a fundraising event for the Body & Soul organization at the city’s Koko club.

“This charity is really important to me because one of my family is HIV positive. And I am so, so proud of him,” Osbourne said.

The 22-year-old attended the benefit concert with her cousin Terry, 40, a hairdresser and star of the UK show The Salon.

In addition to her famous father, 58, Kelly’s family includes mother Sharon, 54, sister Aimee, 23, brother Jack, 21, half-sister Jessica, 35, and half-brother Louis, 32. The family has had its share of public health scares, including Sharon’s battle with colon cancer and Aimee’s breast cancer battle.