Retain your dignity by saying something like
"We've got these acts on - we really hope you enjoy them and have a good evening, because if you do, we're going to try and turn this into a regular event. So without further ado - here's (whoever the act's name is)."
( Je suis un vagabond is an unfunny, up your own arse middle class knob, Mon 9 Dec 2013, 16:32, Reply)