UNDATED (AP) - Green Day's Billie Joe Armstrong is headed to treatment for substance abuse.
Sunday's announcement by the band's rep comes after the rock frontman had a meltdown onstage at the iHeart Radio Music Festival in Las Vegas. In a clip that has gone viral, Armstrong profanely complained that the band's time was being cut short, then smashed his guitar.
In a statement to The Associated Press, the band apologized for the incident and said that their set was not cut short by Clear Channel, the host of the two-day festival.
The Grammy winning band also is canceling some of its promotional appearances. It is due to release the album "Uno" on Tuesday.
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