Complex sentence: As Pulp's front-man, part of his trademark image was his glasses, which seemed to "stay magically on his face" no matter his antics on stage, apparently this was achieved with "a huge rubber band round the back".
Split into simpler sentences: As Pulp's front-man, part of his trademark image was his glasses, which seemed to "stay magically on his face" no matter his antics on stage. Apparently this was achieved with "a huge rubber band round the back".