Seth Rogen started performing stand-up around the age of 13, but he still sometimes gets a case of nerves - on-stage and off.
In this clip, Rogen remembers ...
An early stand-up performance
"I look like I'm a lot more confident than I am in that clip; I probably had diarrhea all day that day."
Proposing to his fiancé
"I was super-nervous, and that's something I wouldn't think I'd be nervous about. I'd been with her for six years, she'd been bugging me for two to get married, so I was pretty sure she was going to say yes."
Hosting Saturday Night Live
"Saturday Night Live is hands-down the most nerve-wracking thing you could ever do."