So, This Is What It Looks Like Before You Go To Rehab

Green Day singer Billie Joe Armstrong flips out after he was told to that he and his band had to give up some of their time at I Heart Music Festival here in Las Vegas to Usher.  (To be honest, I have never heard of any music from either Usher or Green day so I don't know who is better)
Today, Mr. Billie Joe Armstrong entered rehab.
Below is the video of Armstrong freaking out in Las Vegas.  It contains very crude language and is for adults only.