“You basically have to live like a monk,” Amanda Seyfried said of her intense self-health regimen during the shooting of Les Misérables. Seyfried took to The Late Show with David Letterman to explain her fear of being on stage, which she quells with a little whiskey before any appearance. Though an earnest Letterman didn’t seem to understand that Seyfried was largely talking in jest, Seyfried handled the resulting interrogation about her “liquid courage” with the deftness of an interview pro. Hear what Cosette had to say about tackling her stage fright in the clip below.