No need to explain this one, I hope!
Most of the LED messages which have come through for the Fremantle Welcome Sign have been from fans, far flung around the world, directly addressing Bon Scott himself.
This message, however, seems to be a reply to the fans from Bon.
Somehow, where-ever he is (perhaps in some alternative rock-n-roll dimension) Bon managed to hack the system and send thru this mysterious intergalactic greeting…
(actually, I must extend thanks to Brian Bitter for this one…)