Screen star and Great White Way alum Sienna Miller stopped by The Today Show on January 14 to chat with Matt Lauer about her performance in American Sniper. It was quite the morning for her, because just after her TV appearance, she was set to begin rehearsals for her Broadway bow as Sally Bowles in Cabaret. “I’m terrified, of course,” she said about the prospect of singing and dancing at Studio 54. “If I wasn’t, I’d be really worried…this is a big deal!” Up until now, her live belting resume consisted primarily of “karaoke and vodka.” That’s kind of like Sally. Just swap mental breakdowns for karaoke and prairie oysters for vodka. Check out the clip below, and catch Miller in Cabaret beginning February 17.