The funnyman was confirmed as the host of the 84th Academy Awards last month (Sep11), but he's urging fans not to get their hopes up - because he'll be terrible.
The Dreamgirls star jokes, "I think it's so funny that people think I'm perfect for this because I'm going to be horrendous. I'm gonna be the worst host that's ever hosted the show.
"I'm gonna stand there and it's just gonna be, 'And now Clint Eastwood...' - me introducing people. And I'm gonna wear a powder sky blue tuxedo and, at the end of the evening, I'm gonna urinate on myself in front of a billion people."