Les Luthiers/YMMV


 * Growing the Beard: Sometimes literally: Núñez was clean-shaven at first, as well as Acher. Their most successful years came when they were both with beard and moustache, to the point of many fans being unable to recognize them in old photos or footage. Marcos Mundstock was also shaven for a little while, and his daughter reportedly forbids videos from that era being played at home as she finds him "ugly" that way.
 * Flanderization: Daniel Rabinovich in particular.
 * In Mastropiero que nunca, Mastropiero was a compositor with plenty of anecdotes a small quantity of them were Take Thats to him. Fast Forward to Lutherapia and the whole show is about making fun of Mastropiero's many flaws, including plagiarizing the auto-biography from another compositor.