Rehab for Green Day frontman

NEW YORK — Green Day’s Billie Joe Armstrong is headed to treatment for substance abuse.

Sunday’s announcement by the band’s rep comes after the 40-year-old frontman had a meltdown onstage at the iHeartRadio Music Festival in Las Vegas on Friday. As Green Day was wrapping up its performance during the all-star, two-day concert, Armstrong profanely complained that the band’s time was being cut short.

“One minute left, one minute (expletive) left. You’re gonna give me (expletive) one minute? ... I’m not (expletive) Justin Bieber, you (expletives)!” he yelled, and he smashed his guitar before leaving the stage.

In a statement, Green Day apologized “to those they offended at the iHeartRadio Festival” and said its set was not cut short by Clear Channel, the host of the two-day festival.

The band also is canceling some of its promotional appearances. It is due to release the album “Uno” on Tuesday and to kick off a nationwide tour Nov. 26.

Armstrong was hospitalized in early September for an undisclosed ailment, but was OK to perform at the MTV Video Music Awards on Sept. 6.