Sixty firefighters were called to the loading bay at the O2 Arena in London after a fire broke out on two of the band's tour buses leaving six people needing hospital treatment for smoke inhalation.
A spokesperson for the venue said: 'Unfortunately, due to this morning's fire on board one of the tour buses at The O2, tonight's Kings of Leon concert will now be postponed.
'Whilst there is no damage to The O2 there is now insufficient time to rig the arena for tonight's performance. We are sorry for the inconvenience and we will announce a new date shortly.'