Jennifer Aniston's 'Secret' Half-Brother

He's Jennifer Aniston's secret half-brother—a scruffy punk living out of his van. His name is Alex John Aniston. He's known as 'AJ'—he's 24.

AJ and Jen share the same father—former Days of Our Lives star, John Aniston. AJ's mom is John's second wife, Sherry.

Jen has never spoken publicly about her brother. He did show up with his parents at the premiere of her movie, Along Came Polly, nine years ago.

AJ's transformed into a tattooed, mohawked punk. "Live Free" is inked across his stomach—"Down To Cuddle" below his navel.

A photographer recently found AJ at the Burning Man Festival in the Nevada desert.  When asked about his famous sister, AJ only said, "It's been happening since middle school. It's been a pain in my (blank) for years. No comment."

A source told the London Daily Mail, "He had a mattress in the back of his van, always had the same pair of pants with 20 patches on it and only had three shirts."

He apparently wants to keep a low profile. On Facebook, he goes by the name 'Aja Nezitic.'

A secret half-brother—living a life that couldn't be more different than his famous big sis.