Kings of Leon have scrapped the remainder of their U.S. tour to allow frontman Caleb Followill to recover from "vocal issues and exhaustion".
The Sex On Fire singer first encountered problems on Friday when he walked offstage midway through the band's show at the Gexa Energy Pavilion in Dallas, Texas after complaining about the intense heat.
In video footage of the gig posted online, Caleb is heard ranting to the crowd, "My voice is completely 100 percent wrong, I'm sorry... I'm just f--king hot... I'm about to fall down here because I'm so goddamn hot. I have no goddamn idea what the f--k is going on..."
Kings of Leon subsequently pulled out of a concert in Houston the following night and promised to return to both Texas venues in September to make it up to fans - but now a representative for the band has announced they are axing the rest of their trek altogether.
A statement issued on Monda reads: "We are so sorry to say Kings of Leon are cancelling their entire U.S. tour due to Caleb Followill suffering from vocal issues and exhaustion.
"The band is devastated, but in order to give their fans the shows they deserve, they need to take this break. Unfortunately, the U.S. dates cannot be rescheduled due to the band's international tour schedule."
According to TMZ.com, ticketholders have been offered refunds and the band will resume their live dates in Canada on September 28.