I think most of us were a little shocked when Joaquin Phoenix made the announcement that he was going to quit acting and focus on his music career -- and luckily for us, now we're going to get to follow the long strange journey of Phoenix's crack at the Billboard 100. The Hollywood Reporter announced that Casey Affleck will be directing a documentary about the former actor's stab at a music career. Affleck is married to Joaquin's sister Summer, so it makes sense that if Phoenix was going to agree to a documentary, it would be with someone close to him behind the camera.

Now here's the really weird part: when I heard Phoenix was going to move into the music business, I just assumed that it would be in some kind of rock or country style (I mean, the guy did play Johnny Cash). But, it turns out I couldn't have been more wrong, because according to THR, Phoenix is trying to be a rapper -- and yes, you just read that: Phoenix will be making an album with Sean 'Diddy' Combs (maybe he's bartering acting tips for producing services) and will be making his first public appearance at a Las Vegas club this weekend, which will be the kick-off for Affleck's shoot.

So while there is a big part of me that wants to see Phoenix succeed in his new career, I can't help but wonder if this will be The Return of Bruno all over again, but with a hip-hop beat. I guess if nothing else we are going to get one heck of an interesting documentary out of the deal.

Do you think Phoenix has what it takes to become a successful hip-hop artist? Or, is this a sign that the notoriously eccentric actor has good and truly gone around the bend. Sound off below....