4B was a schoolclass in Norway. And they made one CD who's called "4B Greverud skole".
These are photos from concerts where 4b played, so they may be of other bands that played the concert as well.
Firefly Music Festival Jun 21 - 23, 2019 Dover, Delaware, United States Uploaded by Asmith
Firefly Music Festival Jun 21 - 23, 2019 Dover, Delaware, United States Uploaded by Souvenirscars
Led Anniversary VIII Feb 17, 2019 San Diego, California, United States Uploaded by Nathan Mansur