Will Sasso Lemon Compilation.
I don't know why I laughed so much. xD
There were presentations in my Seminar class of music where students get to chose their topics. One student decided to do one on German/Italian singing technique, which lead to ways on explaining how to sing. Usually, the best way to do it is by metaphor (because it's a little difficult to tell/show someone that they have to raise their soft pallet and/or expand back nasal passage).
One of the metaphors was pretending there's a orange in the back of your mouth...
A student showed another student during the presentation a video of the guy in that video shooting a lemon out of his mouth. I couldn't stop laughing on how relative that was to class and absurdly poposterous to actually have done. (I still can't stop laughing).