There has been a lot of collective outrage in recent years over the ways that various pop and rock stars are "faking" live performances. I think that's valid to a certain degree, especially in regards to rock bands. Rock is a broad genre, but one where a certain rawness and authenticity has long been valued over glossy perfection, after all.
Photo by Jason Rogers Is that guitar plugged in?
But some of this outrage toward performers of all types seems misplaced when you look at things a little closer. In today's market, musicians of all types are often making more money from their tours than they are from album sales, a reversal from the days when live shows were primarily a way for popular bands to promote album sales.
And since live concerts are so important these days, there is an added incentive to make them perfect, especially since ticket prices for some of them have risen to ridiculous levels. But pop and rock stars have used various technologies and other tools to make live shows look and sound better for decades; some of these techniques are new, and some have been around for years.