At 76 years old, legendary rocker Ozzy Osbourne took to the stage at the “Back to the Beginning” festival in Birmingham for his final live performance.

After the show, Kelly Osbourne — who rose to fame alongside her parents Ozzy and Sharon, and brother Jack, on the MTV reality series The Osbournes (2002–2005) — shared an emotional tribute on Instagram. Fighting back tears, she thanked fans:

“You have no idea what you did for my dad. It was one of the most magical experiences of my life… If I keep talking, I’ll probably start crying again, so that’s all I’ll say for now – thank you.”

Source and images: Instagram @kellyosbourne