in fact, you can say that the single order is done to maximise album sales to as broad a demographic as possible, rather than solely to market the singles or tours.
i mean, they always bring out an upbeat 'rock' track first, traditional jovi fayre, to reassure the fans (who'd go to the shop to buy it especially) that they're back and that they're still rock-y, thereby getting a high chart position and raising the band's profile. after appeasing the fans they release some mid-tempo or ballady- stuff that people can buy in asda with their groceries because it shows the bands a bit less rock and threatening.

maybe.
xx