British singer Kelly Osbourne, daughter of heavy metal star Ozzy Osbourne, says a member of her family has tested positive for HIV.
"This charity is really important to me because one of my family is HIV positive. And I am so, so proud of him," she said during the concert.
Photographers at the concert reported that she started sobbing before leaving the stage, Sky News said.
The singer rose to fame on the reality TV show "The Osbournes," which followed the antics of her father and his dysfunctional family.