I was thinking of creating an anonymous ticketmaster account using public wifi since they block VPNs and just have them email me updates, but they required a phone number for the sign up so I scrapped that idea.
Edit: I decided to sign up for songkick as someone else here mentioned. It seems pretty polished and its entire purpose is concert discovery. It never asked for any unnecessary extra information either such as first and last name and phone number, just an email and a password and boom.
If you connect songkick to last.fm you will get notifications for any artists you listen to, without explicitly following each one.