There are multiple artists using the name Gabrielle, Notably one from the UK and another from Norway -
These are photos from concerts where Gabrielle played, so they may be of other bands that played the concert as well.
BBC Proms in the Park Sep 14, 2019 London, England, United Kingdom Uploaded by 35capade
Gabrielle Apr 5, 2019 Gateshead, England, United Kingdom Uploaded by Tommo