Going off topic, but it's worth mentioning, if you like picking apart vocal techniques:
Pavarotti had good enough luck to have a huge lyric voice (rare), and bad enough luck for it to be minimally agile. Therefore, his phrases and rhythms were always somewhat clumsy--there's that certain breathless, tense, disorganized quality, which apparently made him hard to conduct and accompany. The average singer shouldn't imitate that style of singing, because the average singer should have a more maneuverable voice naturally, or work hard to develop one. His way of approaching high notes successfully circumvents the problem, which is why he sounds nice, but anyone who has an ear for technique gets a little uncomfortable (he's covering his own mistakes, essentially). Same problem with some big female singers; anyone else tries it, and it sounds contrived and ridiculous. It's hard to explain with words. If you listen to his masterclasses, by the way, even he realized this, and did not try to lead students into doom (Technique of Doom, with the Phrasing of Doom); he spoke about the passaggio, and managing breath, and expression, and so on. However, I use his recordings sometimes to show singers how to properly cover high notes; he struck a perfect balance, which gives him such a superb, ringing sound color (further assisted by a natural tendency to be loud).