@alive I am not following how you are using appearance as an indication regarding selling out.
I am going to assume you are referring to band that wear blatant makeup rather than the makeup used to keep a performer under hot lights shine-free and flesh toned.
You also mention costume as an indicator.
Immediately your analogy fails as such classic and legendary bands as the Rolling Stones, Kiss (who built their careers on the mystique of hiding behind makeup and garish costume) David Bowie, and nearly all heavy metal bands carried an image and persona to the stage through costume and appearance.
If you are referring to a musician who wears makeup and costume in public as a sellout I present to you the case of Mr. Jackson who was not a sellout as you might assume but a very insecure person. Had he been a sellout we would be seeing commercials for aftershave to the tune of “Man in the Mirror” and Raid Bug Spray for “Off the Wall.”
As you can tell I am not a fan of vast generalizations. One cannot tell a book by its cover nor a sellout by it’s appearance.