Okay so I had to pick - Clubs and bars, over the noise who else would hear?

But -

I love karaoke - so I will sing in clubs and bars when I know people CAN hear

But -

I won't (and can't actually) sing just anything - I have specific songs that I sing on Karaoke - some of my favourites are -

Amy Winehouse - Back to Black
Amy Winehouse - You know I'm no Good
The Eagles - Hotel California
James Blunt - Wisemen
Bryan Adams - Everything I do (I do it for you)
Queen - Too Much Love Will Kill You

These are not necessarily indicative of my favourite music, but these are the songs i like and can (to a degree) sing

Do you sing Karaoke?

Great poll question