you should mention 初音ミク.. or supercell .... that will get more of my attention~!!!!
Hologram is not new technology in japan la... don't be surprised.
No one will come to the concert if they don't display 119's art work with 初音.
(after second watch)
It is not a hologram. The projectors projects images on a silk screen (or semi transparent screen) on the stage. The image will appears is upright independently. Look at the glow sticks reflections behind the stage, it tells you it's a smooth screen
First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.