The other members of Kings of Leon are now telling lead singer Caleb Followill to enter rehab, US Weekly reports.

The news comes fresh off the heels of break-up rumors and Twitter rants that have spilled from the band's sudden exit from a Dallas show on Friday.

"They are trying to get Caleb to go to rehab. It is mostly for alcohol . . . he drinks like a fish," a source close to the Nashville band told Us Weekly on Tuesday.

On Friday, fans captured Followill on video complaining to the sweltering Dallas crowd about feeling sick.

"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," he said.

Over the weekend, Kings of Leon bassist and brother to Caleb, Jared Followill, took to Twitter on multiple occasions to express his frustration.

"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," Followill wrote on July 30.

"Utterly depressed. It's completely out of my hands. Family has to come 1st. If bass solos & backing vocals were more popular, I'd be there," he continued.

Sporting a hat, sunglasses, a green shirt and jeans, Caleb Followill was recently seen walking on the streets of New York with his wife, model Lily Aldridge. The 29-year-old rocker appeared mellow.

"I'm just trying to get better," he told a TMZ reporter.

The band has since cancelled the rest of its U.S. tour, with a return date set for Sept. 28 in Vancouver, Canada.