You would want to start with the purple first, but only in the centre of the lid, then you would want to use a waterproof eyeliner, cream or gel would probably work best and then slowly do each side of the eyelid. You will want waterproof because you are most likely going to be sweating at a concert. It doesn't need to be exact on each eye, and if you made it slightly messier and made the lines further out from the eye it would pop out and stand out more. You could then add glitter on top or do whatever you choose to add some sparkle.