Great question @Rastaman399!
We notify listeners of local concerts or other news through Discovery and Artist Messages.
Discovery & Artist Messages
During your listening sessions, Artist and Discovery Messages on Pandora allow you to get exclusive updates directly from Pandora curators and your favorite artists about new albums, videos or upcoming concerts in your area.
The announcements you hear are not advertisements by Pandora. Instead, these are messages made by artists or curators on Pandora, alerting you of new music, tours in your area, or just thanking you for listening.
Hope this helps!