Grey's Anatomy brought back Denny (as a spirit), and Rachael is bringing back the sexy actor who plays him, Jeffrey Dean Morgan, to answer some audience questions.

What is the best and worst pickup line you've ever heard?

"It might have been the same one," Jeffrey says. "It wasn't really a line -- I actually got picked up here in New York walking down the street. A group of women (I think they had been at a bar, that's my guess -- they had had a couple of drinks and were feeling a bit spicy), they literally picked me up and tried to put me in the cab with them. It was like five of them. It was very funny, but at the same time I was scared beyond belief!"

Denny's death scene on Grey's -- how did you prepare for that?

"Everybody was really emotional, especially that day, so it wasn't really hard to get there, emotionally," says Jeffrey.