Since I started using a headset mic, the number of aspiring singers coming to the stage has diminished drastically. I carry extra mics if needed for announcements and for any singers I know...but those that don't will hit several speed bumps with me. And, yes, first thing I ask is the key they sing the desired song in.

Now...if its the guy signing the check ...well, there are exceptions to every
rule.

One club I work in has live entertainment Wed and Saturday... with K singers on Thursday. So, I refer them to Thursday. So far, that seems to solve the problem.

But, make no mistake...there are some really good singers out there....and that really ticks me off.