While Jack said that he was unfazed by his dad Ozzy's success in Black Sabbath, he confessed that he found it difficult to adjust to his mother's immense popularity in the UK and America.
The 21-year-old reality TV star said that he did sometimes miss the X Factor judge playing mum at home.
Jack said: 'With my mum it was hard to get used to the fact she was on TV all of the time, and then she's my mum at home.
'She's got to entertain people so she's not going to be on the phone, doing business and holding the dog.
'She has a persona to keep up with and I had to get used to that.'
Jack also recently revealed that he could not believe it when he heard that Brad Pitt was a fan of his family's show, The Osbournes.
