Billie Joe Armstrong is headed to rehab.
The Green Day rocker is seeking treatment for substance abuse after an F-bomb-laced tantrum at the iHeartRadio festival in Las Vegas.
"You're going to give me one f---ing minute? You gotta be f---ing kidding me... What the f---? I'm not Justin Bieber you mother-f---ers," Armstrong ranted, thinking the band's set had been cut short to give other artists more time.
To punctuate the tantrum, Armstrong smashed his guitar on stage and stormed off.
The band later apologised for the outburst, saying their set was not cut short.
It's a big setback for Green Day, who are set to release their new album Uno on Tuesday and tour in November.