That can be a big problem for some Pop/Rock bands, in that their fans expect them to play their hits exactly the way they were recorded, down to the exact solos

That can be a big problem for some Pop/Rock bands, in that their fans expect them to play their hits exactly the way they were recorded, down to the exact solos, for decades on end. In contrast, Jazz vocalists don't get taken as seriously if they reproduce their recordings too exactly, and Jazz instrumentalists don't get taken seriously at all. In that genre, you're expected to bring something new to each performance.