Groups or solos might perform in venues inside the city, though most of the performing actually goes on in their camps, picture outside stages, tented markets, etc. The performances inside city walls are more like teasers/advertisements for the real show that goes on in their home base. But yes, they set up camp outside the walls of Sapphire. (think like going to a circus, though most shows are performed on several movable stages, rather than covered tents)