Watson, 21, made the revelation during an interview on 'The Late Show With David Letterman' in New York.
Yes I have tried spirits, we drink at 18 in the UK but I'm actually legal to drink here now, it's worth mentioning. Yes, yes I have. I got very very drunk once in my life as everyone does. Fine I got drunk, I have been drunk - and I'll bow to that! Contactmusic quoted her as saying.
She was asked if she had ever peed on the subway, while in an intoxicated state.
No it's never gotten that bad - thankfully it's never been that bad, she replied.
