1. official website: Concert organizers or organizers usually post relevant information in official website or social media platforms, including concert plan, license number, performance time, venue address, etc. Inquiries can be made through search engines or related websites.
2. Cultural department of your city: If you want to know about the permission of a concert, you can consult the cultural department of your city in order to obtain more accurate information and ensure legality.
3. Public security department: Some concerts need security check and approval, so the public security department may also participate in the approval and issuance of concert licenses. You can also consult the local public security department for relevant information.