Kelly Osbourne's sweet surprise for Sharon on first birthday since Ozzy's death

Kelly Osbourne threw a sweet surprise for her mum, Sharon, as she celebrated her first birthday since the death of Ozzy.The Black Sabbath legend died of heart failure at his Buckinghamshire home on July 22, just two weeks after performing a farewell concert with his bandmates at Birmingham 's Villa Park.Taking to her Instagram Stories on Thursday, Kelly shushed viewers as she quietly showed the birthday decorations she managed to set up for her mum while she slept.