Joey would nail cadilac rock box, especially the end "Rock, rock (que "Glam scream") On!"
I recon it would be interesting to hear joey do johns stuff (just as i though it interesting to hear TGO2E), Nothing, only, room for one more, black lodge, safe home, infact the majority of the bush era catalogue i recon joey could have a decent crack at. Inside out, random acts and black dahlia (shit song anyway

) being the songs joey should definatly steer clear of.
P.S Greying mullet? John isnt all that young either, i wonder if he shaved his head coz he was going bald ???