“We’ve always seen a lot of my dad’s kind of charisma and persona in Robbie Williams.
“Although musically they are different, their stage presence and charisma is something we’ve always thought there was similarity between the two of them, and he was happy to oblige,” he said.
The performance had been curated by Sharon Osbourne and was backed by a band including Metallica’s Robert Trujillo and Ozzy’s long time guitarist Zakk Wylde.
Speaking on the red carpet at the Brit Awards on Saturday, Sharon Osbourne said her husband, who was born and raised in the Aston area of the city, had never forgotten his hometown.
“Ozzy loved being a Brummie, he was very proud of where he came from and never ever forgot. He always used to say, northern people are the most loyal people in the world, and it’s true,” she said.