"Sigma" can refer to;
These are photos from concerts where Sigma played, so they may be of other bands that played the concert as well.
Reading Festival 2022 Aug 26 - 28, 2022 Reading, England, United Kingdom Uploaded by Beth Bowden
Reading Festival 2022 Aug 26 - 28, 2022 Reading, England, United Kingdom Uploaded by 10samc
Reading Festival 2022 Aug 26 - 28, 2022 Reading, England, United Kingdom Uploaded by Deliverybuoy
Leeds Festival 2022 Aug 25 - 28, 2022 Wetherby, England, United Kingdom Uploaded by Nataliexgrace
Leeds Festival 2022 Aug 25 - 28, 2022 Wetherby, England, United Kingdom Uploaded by Sy.28
Leeds Festival 2022 Aug 25 - 28, 2022 Wetherby, England, United Kingdom Uploaded by Ellieglc
