Watch Emma Watson Shout "I Have Been Drunk!" on 'Late Show With David Letterman'

Emma Watson was interrogated by David Letterman last night on Late Show With David Letterman about her Harry Potter co-star Daniel Radcliffe and his recent confession that he had a drinking problem. The actress eventually even shouted her own drinking confession on the show, admitting, "I've been drunk!"

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Knowing that Emma has worked with Daniel since they were very young, David decided to ask the actress if what she knew about the recent reports that Daniel had past drinking problems.

"To be honest, it's really not something I genuinely know much about," Emma said. "He is the one to talk about it. As far as I know, he never took a sick day and he was the most professional... amazing..."

"Do you drink at all?" David then asked her on his show. "Do you use controlled substances?"

"I got very very drunk once in my life. As everyone does!" Emma confessed.

"That's all I'm was looking for," David said.

"Fine! I got drunk!" Emma shouted. "I got drunk! I have been drunk!"

And then she took a much-deserved bow.

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Watch a clip from the interview (via AOL TV), below!