Oh, no guest.

Quite apart from the fact that we probably all know perfectly well the derviation and meaning of the expression "prima donna", whatever you think of TDL's musical abilities (or songwriting abilities, and they are two different things - vide for example Bob Dylan whose "musical" performances are about the nastiest noises on the internet, although he also wrote some pretty good songs) "egotistical, unreasonable, and irritable" would be three unfair things to say about them. They have opinions, and not everyone agrees, but (apart from sometimes) they are not usually irritable. Yes, I've seen Sue lose it big-style, and make a bit of a fuss sometimes, and she and I have had sharp words from time to time, but by and large TDL are amusing and amiable.   The Leopard Cubs can be teenagers sometimes (but, gosh, they are teenagers)!