I recently saw an etherially lovely singer get up, and before doing her song announce that the following song was uncharacteristic for her, because it was sexy and she never considered herself sexy. The song has a theme of heat, and boy did she generate it during the performance!!!
Afterward, I found myself thinking that this is one of the great joys of cabaret. As a performer, you can become someone totally different from yourself and expereince that person’s thoughts and emotions. And as long as the performer remains committed to what s/he’s doing, the audience will totally buy it.
And unlike acting in a larger dramatic piece, one can cast oneself. And if something doesn’t work out, it’s easy enough to drop a song or find a different approach.