There is an upside down pentagram in there, which is used by black magicians. I don't have the patience to scroll through the rest; it looks like they're trying to cause epilepsy in the audience or hide weak song material.
That a sweet woman like Ms. Minogue should be using such symbols in her concert graphics is 1. Lazy and ignorant and 2. A sign o' the times; throw any old stuff in the stew that might be 'cool'.
Frankly, in that stage setting any old crap could bypass your normal consciousness and lodge in the ol' subconscious; I understand that's how some forms of advertising work. We remember everything we encounter; it's all in there somewhere.
Saints and mystics, some of the smartest and lauded men of their time, have had encounters with the Devil but in a 'show-me' materialist culture few believe in him any more. Until they get into 'New Age' culture, go a little too far and encounter something a bit more tangible than a fairy story.
I think occultism might be a bit like criminality; you hear so-and-so is into witchcraft or shoplifting or drugs, havin' a ball, then they 'drift off the scene', then they either come back a good deal more subdued or they don't come back at all.
Just a notion.
