HA! I love comedic musicians, I was at a concert about two weeks ago at the Stanford Jazz festival where there was a piano duet between two of my teachers right before intermission, and it was entirely set up as a comedy skit, they were shoving each other off the one bench they were sharing, playing catch with basketballs, etc. all while playing Blue Rondo A La Turk! Sadly I don't have a video to show you :( although there is a famous classical pianist Victor Borge who did similar stuff...
... but all in all I feel like Jazz musicians (especially ones from the 50s and onwards, because by then Jazz was starting to become more than popular dance music) do deserve to take themselves very seriously. Not to fulfill any stereotypes, but I do believe that Jazz is a very intellectual music, and it takes a smart person to truly appreciate Jazz, as it is a genre where most of the gold is hidden under the surface.
3 undeniable facts:
1. Halo 3 is better than Call of Duty 4
2. Smash Bros is better then... any other fighter
3. Failout 3 is BAD
