*What is Mike Tyson’s biggest regret? Take a guess: It’s not that hideous face tattoo, or that rape charge he got back in the day, or beating Robin Givens.

Take another guess. Oh, and it has nothing to do with “eating” Evander Holyfield’s ear.

If you saw ESPN’s special about Tupac and Tyson, you’ll probably figure it out.

Well, Tyson told reporters that his biggest regret is that he didn’t smoke weed with 2pac.

“[Tupac] always wanted me to smoke weed with him, and I never did it. I wish I did. That’s my biggest regret,” Iron Mike tells The AP.