I worked at Apple in the late 2000s and early 2010s, at a time when iTunes was still king of the hill in terms of music distribution. During the summers, they would periodically host private performances from popular musicians on Apple campus. It was a neat perk for a fresh-from-school junior engineer.

I have no idea what the details of those performance bookings were, but I always assumed that plenty of money changed hands to make it happen.