Emma Watson made an appearance on Monday's Late Show with David Letterman before heading off to the NYC premiere of Harry Potter and the Deathly Hallows, Part 2.

The ever-graceful Watson has always been an eloquent speaker and a pro at answering curveball questions. Of course, she should be by now. Having grown up in the spotlight, the young actress knows how to work her way around a question without putting her foot into her mouth.

However, Watson grew a bit weary on the show when Letterman broached the question about Daniel Radcliffe. In an interview with UK's GQ, Radcliffe revealed that he once had a problem with alcohol. The actor has allegedly been sober for almost a year.

When Watson was asked to comment on Radcliffe's experience, she said: To be honest, it's really not something that I genuinely know much about and you should, I mean, he is the one to talk about it ... He was like the most professional, amazing guy ever.  After that, the talk show host took the plunge and turned the tables on the 21 year old actress herself. Do you drink at all? Do you use controlled substances? Watson turned every shade of pink and finally laughed. After a series of ums and uh the actress confessed that she has drunk Spirit before. Letterman playfully pressed on for her to elaborate and really talk about her experience. Watson cutely pleaded with the host to move on to a different subject as she appeared to be uncomfortable with answering.

Finally, as she stumbled for words and unsuccessfully tried to walk around the matter, Watson admitted:Yes. Yes I have. I've got very, very drunk once in my life, the crowd laughed and began to applaude her. Fine. I got drunk! I have been drunk! she shouted, after which she stood up for a bow.