United Kingdom, Oct. 11 -- Kelly Osbourne surprised her mother Sharon Osbourne with a heartfelt birthday gesture - her first since the death of her husband Ozzy Osbourne.

Black Sabbath frontman Ozzy, died aged 76 on 22 July from heart failure at his home in Buckinghamshire, just two weeks after performing a farewell concert with his bandmates at Birmingham's Villa Park.

And Kelly, 40, has now shared videos on Instagram showing the surprise decorations she had arranged while her mother slept. She said on her Instagram Stories: "Shhh! So it's my mom's birthday today, and I just decorated her room."

Panning the camera across floating balloons and wrapped gifts before turning the camera towards Sharon, who had just turned 73, Kelly added: ...