Luciano Pavarotti & Zucchero - Miserere (Live 1992)

I know this is not exactly opera, per se, but this little video has multiple important distinctive qualities:

1) It is the first recording I ever heard of maestro Pavarotti, this back when I was about 19 years old.  Back then I didn't know who he was, I just liked the recording a lot.

2) It is a unique opportunity to see the maestro rockin' hard with a handled microphone, fully loaded with reverb and effects processing.

3) For reasons that I can only make up, Pavarotti looks like he's extremely into the song, matching Zucchero's own committment, making this a a most excellent recording.

Rolando Villazón delivers a passionate interpretation of María Grever's "Júrame"

This is one of the great favorites of Mexican songwriting, superbly interpreted by the great Mexican tenor, Rolando Villazón. In this case, Rolando's all-consuming passion suits this song perfectly. The song is the epitome of Mexican-style possessive / self-destructive romanticism. It's how all the male leads in Mexican "golden age" cinema end up drinking a huge bottle of unlabeled, unidentified alcohol in a smoky cantina.

An additional interesting note is that Maria Grever was a student of Claude Debussy, according to Wikipedia.