There are at least four artists with the name Placebo:
These are photos from concerts where Placebo played, so they may be of other bands that played the concert as well.
The Mirror Trap / Placebo Mar 18, 2015 Birmingham, England, United Kingdom Uploaded by Josh King
The Mirror Trap / Placebo Mar 16, 2015 Leicester, England, United Kingdom Uploaded by Thekilburnoracle
Placebo / The Mirror Trap Mar 3, 2015 Aberdeen, Scotland, United Kingdom Uploaded by Neil Macdonald