Tween star Aaron Carter has hit back at Jack Osbourne's comments he could "kick the s**t out of him", and has branded the 20-year-old a "brat".
The feud was recently ignited when Osbourne criticised Carter, 18, 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.
According to Contactmusic, Carter dismissed Osbourne's claims he could beat him up. "He's welcome to try to kick the s**t out of me any time he likes," Carter said.
"I normally love Brits but this guy's brain-dead. He comes across as the biggest brat of them all on his show."
Nick Carter adds, "What Jack Osbourne knows about talent would barely fit on a postage stamp."