Now, Cooper tells EW he’s even surprised by how popular the footage became. “I don’t know what happened with the giggling,” Cooper tells EW. “I mean, I’ve always giggled like a 13 year-old girl at a Justin Bieber meet and greet. There’s nothing I can do about it but I’ve never not been able to stop. I’m a little stunned by how many people have seen that video. I went to bed telling myself, ‘I doubt anyone will notice the giggle fit.’ I woke up and in the elevator the first thing my building super said to me was, ‘What’s wrong with your laugh?’ It could be worse: I could have a viral video in which I throw up on a guest or drunkenly eat a hamburger on a bathroom floor. Not that I’ve ever done either of those things. Not yet at least.”