He told the BBC how “heartbroken” he was over the Sabbath star’s death.
“It was the effect he had on my life. I know people in Birmingham feel the same way – all over the world.
“I thought the best thing to do was gather people from far and wide, talk about the stories and concerts they’ve visited, and spread positivity about it all.”
The head metal fan posted the event on Facebook on Tuesday evening, shortly after Birmingham-born Ozzy’s death was announced.
He said: “It was unbelievable. I’m gobsmacked at how many people have got in contact with me.
“People are coming from as far as Bristol and Wales to share the memories – share the good times that they’ve experienced with Ozzy, Sabbath and all-around metal music.”
Speaking about a fitting tribute the city could install to commemorate the star, he suggested an Ozzy statue outside Birmingham Children’s Hospital to reflect his charity work.
He added: “Ozzy was true to himself; he always loved Birmingham, it was his home. “He’s always been a man of the people.”
Fans also want to rename Birmingham Airport after the singer as a way to honour him. A petition, with nearly 14,000 signatures so far, said the move would recognise his “undeniable” influence on music and culture.
The petition stated: “Naming our international airport after him would be a fitting tribute to his extraordinary career and contributions to the arts.”