I think they always use this 'going to rehab' as a way to excuse their assinine actions in public...
Or to buy some "Legit cred", of which he lacks. Wow, he's so punk, he's going to rehab.....maybe he'll see Christian Aguilera there and they can like, duet!
Again, Green Day is the most blatant, corporate, plastic non-punk "punk" that has ever existed. Literally everything about them screams manufactured and fake, including his "I'm like, so Pete Townsend-like" rant and guitar breakage.
Tis a shame, because Armstrong does have soem songwriting skills/chops, but the whole corporate-created marketing "angst punk for upper-middle-class white kids" image is deeply off putting.