Aaron Carter arriving at the Regis and Kelly Show. New York City, USA - 29.09.06

The feud was recently ignited when Osbourne criticised Carter for "pretending to be black" in new reality TV show HOUSE OF CARTERS, and admitted he would gladly start a fight with "irritating little b**tard" Carter.

But Carter has dismissed Osbourne's claims he could beat him up.

He says, "He's welcome to try to kick the s**t out of me any time he likes. I normally love Brits but this guy's brain-dead. He comes across as the biggest brat of them all on his show."

Brother NICK CARTER adds, "What Jack Osbourne knows about talent would barely fit on a postage stamp."

Source: WENN