La Bohemme by Puccini! The most popular opera ever!!!!! Is a must for newcomers to opera. Beautiful music, great duets, great love theme, tragic death at end - its got it all. Was the background music in Moonstruck. I agree with the above recommendations re: go to your library and listen to singers and music from compilation discs to discover for your self which singers you prefer - the great ones are well known and the choice is very personal. And as Sugarbrie sez, they don't need to use a microphone.