Boxing champ ear biter- at -large MIKE TYSON shocking confession!

He only took his crowd pleasing role in hit The Hangover playing "himself" because it fed his notorious need for drugs, the pugnacious pugilist admitted.

"I was doing that to supply my drug habit," Tyson, 44,  told radio show Gridlock.

"I said, ‘Wow, This is going to be really good. We’re going to sell this stuff on 42nd Street on bootleg and make a lot of money.’

"This is my best thinking on drugs… It wasn’t that way."

Instead of being an FBI frowned-upon pirate bootleg, the raunchy comedy flick became an international hit, forcing spell checkers worldwide to add the word "Galifianakis".

Tyson has been purportedly clean since the death of his four-year-old daughter last year.