"Here’s what happened— it’s when you’re promoting a movie, and you go out, and I call it Grind Monkey, Grind. They ask you to do stuff. So I got there and they go, "You know Gangnam Style?" and I was like "Not really!" and they go, "Do the dance!" So I kind of— I didn’t know what I was doing."
— Robert Downey Jr., Jay Leno