I was only listening to the 13 min live 'Blood on Blood' today from the New Jersey special edition and thinking about just how much Jon's voice has changed.

I see the band as almost having two different singers - the raspy singer up to 1997 and a different singer from Crush onwards.

It must hurt Jon to look at his back catalogue and know there are songs he can't sing anymore.

Mind you he's not alone. Saw an interview with Joe Elliot recently and he spoke about going back into the studio to re-record 'Rock of Ages' and 'Sugar' for iTunes and how the session left him in pain on the floor trying to sing like the 1986 Joe Elliot.