There´s more than one band called Plexus. This one is a heavy metal group founded on 2000 in Salvador, Bahia, Brazil.
These are photos from concerts where Plexus played, so they may be of other bands that played the concert as well.
Plexus / Hell City / Third Dynasty / De Plenkskes / Jawadde Nov 18, 2009 Maaseik, Flanders, Belgium Uploaded by I Loooose