Ombra Mai Fu

from Wikipedia:
“Ombra mai fu” is an aria from the opera Serse (Xerxes) by George Frideric Handel.
The title, which translates from the Italian as Shade there never was, is the first aria of the opera. It is sung by the main character, Serse (or “Xerxes”), in praise of a tree’s shade as he sits underneath it. [...]

Castrato, Sopranista, Countertenor

Source: WikipediaI am writing this post still cringing of what I have discovered today on the Internet and on YouTube about three other types of male classical singers. These are the Castrato, Sopranista and Countertenor.
What are these three?
A Castrato is a male soprano, mezzo-soprano, or alto voice produced either by castration of the singer [...]