I think what's acceptable and what isn't depends a lot on the club, and the only way to find out is to listen to what other singers do and pay attention to the response you, and they, get.

The other key, for me, is that people usually want to listen to something new and interesting. So if you want to do a very familiar song because you love it, that's fine - but you have to do it in a new way. A few months ago, a very talented and highly respected singer came to my regular singaround and sang 'Waltzing Matilda' - which had been on my 'don't-even-think-about-it' list. It was brilliant, and since then I've re-thought a lot of my taboos.

When I was new to singing, I sang 'Three Score and Ten' at a local club. Afterwards, someone caught me in the bar and said in a sarcastic tone ' that's not overdone much, is it?'. I haven't been to that club since, or to the one which he runs, and I didn't sing the song for a few years, but I got it out again a couple of weeks ago, gave it my own interpretation (no clever accompaniment, just a different approach to the story) and have had really positive comments when I've sung it since.