If the intent is to draw attention to oneself, it may be referred to as exhibitionism, otherwise it may be to draw attention to a cause (see nudity and protest).
In fact although he possessed talents of gigantic proportions, he never indulged in exhibitionism and his only aim was to enhance the total appeal of the concert.
Previously "jugalbandi" in the field of classical music had degenerated into a competition between the two singers where each tried to outdo the other in exhibitionism.
