Billie Joe Armstrong -- Green Day Frontman Enters Rehab Following Concert Meltdown
Green Day Frontman Enters Rehab After On-Stage Meltdown
Green Day's front man Billie Joe Armstrong is entering rehab for substance abuse ... a rep for the band tells TMZ.
The news comes just two days after Armstrong went ballistic in Vegas during a performance at the iHeart Radio Music Festival. He was videotaped screaming obscenities, slamming Justin Bieber and violently smashing his guitar on-stage.
The band's rep tells TMZ, "Green day wants to apologize to those they offended at the iHeartRadio Festival in Las Vegas."
![](https://imagez.tmz.com/image/86/16by9/2012/09/22/869576bfdc3f5c0da6aaa67dfefca75d_md.jpg)
The rep adds, "The band regretfully must postpone some of their upcoming promotional appearances.“