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Are there problems in the Kingdom of Leon? Caleb Followill, frontman of Kings of Leon, cut short a concert in steamy Dallas Friday after telling fans he was taking a breather to throw up. He did not return, and apologies from other members of the band -- which essentially threw Caleb under the bus -- have raised worries there may be bigger problems afoot.

"I'm gonna go backstage and I'm gonna vomit, I'm gonna drink a beer and I'm gonna come back out and play three more songs," Followill, 29, told fans at Dallas' Gexa Energy Pavilion.

A video montage uploaded by YouTube user "Trodmac" follows the path of the concert, with Followill telling fans his voice was "100% gone" and asking them to sing every word of their hits to help him out. He called Dallas "one of the best crowds we played for" all summer.

Followill also told fans, "for the record I'm not drunk, I'm just f******* hot." According to the Hollywood Reporter, temperatures were in the 90s during the concert.

But after he left and did not return, two other members of the band took to the microphone to apologize to fans.

"We are so unbelievably sorry. There's no words right now, it's beyond our control," said one band member, reported to be bassist Jared Followill. "Caleb's just a little unfit to play the rest of the show."

The band continued, "We love you guys so much, but I know you guys f****** hate us. I'm so sorry. It's really not our fault, it's Caleb. He can't play the rest of the show. We will be back."

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While the official explanation for Caleb Followill's exit was from heat exhaustion and dehydration, his brother Jared hinted to his Twitter followers that there was more to the story.

"Dallas, I cannot begin to tell you how sorry I am. There are internal sicknesses & problems that have needed to be addressed. No words," he wrote, later adding, "I love our fans so much. I know you guys aren't stupid. I can't lie. There are problems in our band bigger than not drinking enough Gatorade."

The "Sex on Fire" rockers also postponed a concert scheduled for Saturday outside Houston.

These live problems arrive a year after the band abandoned a concert in St. Louis three songs into their set because pigeons were defecating on them.

Questions? Comments? Let us know: @billboard

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