It's been over a year since I reported Juan Diego Florez sang an encore at La Scala. This may have been because Rolando Villazon did one in Vienna for L'Elisir d'Amore which was put into the DVD. Now Florez has done one for Daughter of the Regiment at the Met. This is the aria with the 9 high C's. According to the New York Times, Pavarotti did one at the Met in 1994 in Tosca.
I have still never seen one in a live performance. Perhaps it will happen on Saturday, too. That would be fun. My only question is: why is it always tenors?