Caleb Followill's 'exhaustion' will set the band's insurers back a lot of cash
But band have denied they're splitting despite cancelling US tour
Nathan Followill takes to Twitter to dispel rumours that the band are near breaking point
A statement blames 'vocal issues and exhaustion' for the shows being pulled
Fans want singer to take some time off – although some believe the problems have been exaggerated
Caleb Followill is suffering from 'heat exhaustion' following Dallas abandonment last night (July 29)
Jared Followill tells jeering Dallas crowd: 'Hate fucking Caleb, not us'
Singer suggests that he and the band could start releasing individual material
See a new video from 'Talihina Sky: The Story Of Kings Of Leon'