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."

http://www.tmz.com/2012/09/23/green-...aded-to-rehab/

Oh

OMG I hope he gets better after his stint in rehab.

a mess

DFFFF I am gone

oh billie ..

omg

OMG Billie!

It seemed like there was something wrong with him.

Wow.

And here people were praising him for his meltdown. I feel sorry for this generation

omg

I feel like a fool now, knowing that meltdown was genuine. I thought it was a joke

I thought he must have had something wrong with him when he was acting like a little 12 year old c*nt at that iheartradio thing.

Poor Billie


I still loved his meltdown though lol I knew it wasn't a joke at all he was really a mess that night you could tell right away!

You wont believe the absurdities stans will excuse.

And some people thought he was joking, I knew there was something wrong with him.

I just KNEW he was on something.