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.
Beyond Wonderland Southern California 2022 Mar 25 - 26, 2022 San Bernardino, California, United States Uploaded by Raquel Moritz
Global Dance Festival 2021 Jul 23 - 24, 2021 Denver, Colorado, United States Uploaded by Laggy
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
Lollapalooza 2018 Aug 2 - 5, 2018 Chicago, Illinois, United States Uploaded by Raven
Trapfest Phoenix 2017 Jul 15, 2017 Phoenix, Arizona, United States Uploaded by Spider Cam
EDC NY 2016 May 14 - 15, 2016 New York, New York, United States Uploaded by Lawrence Peryer