Who the hell is Joaquin Phoenix?

Who the hell is Joaquin Phoenix?

I Heard that this guy called Joaquin Phoenix retired as a actor to become a rapper?????.....I'm like who the hell is this guy!
So then, I typed in his name in Yahoo to see if there were any other pics.
Damn! it's that guy....why? why now?....I heard that he left the partygoers stunned when he performed 3 songs....I can imagine.
But boy, he said he has always wanted to Rap...I wish him all the best.

I'm digging for some footage...will try and put it up soon.