BB King is, without a doubt, one of the greatest performers I’ve ever seen. Aside from the fact that he was always dressed in suit and tie to perform, I think his elegance comes from his restraint and taste in his guitar playing.
In the video above, listen to how he chooses to keep his playing fairly minimal, despite his obvious skill and virtuosity. He could have cranked the volume and just let loose with a barrage of notes, but he knew to let the music ebb and flow based on the needs of the song. This is truly an example of how to give an elegant musical performance.