Mandi Bierly
January 16, 2009 AT 08:58 PM EST

Last October, the news that Joaquin Phoenix was abandoning his acting career to pursue a musical one was met with mixed reviews and our own Michael Slezak penning Phoenix’s first single. I’m far more intrigued by Phoenix’s change of heart now, after reading in The Hollywood Reporter that he wants to be a rapper and will have Diddy produce his album — and that his brother-in-law, Casey Affleck, is filming a documentary following his efforts. Shooting “officially” begins today in Las Vegas, the trade says, though Affleck was spotted filming Phoenix in action in November. (TMZ also got some footage.)

Will I buy a Joaquin Phoenix rap album? Probably not. Will I watch a documentary on Joaquin Phoenix’s attempt at a rap career? Definitely. Who’s with me?

More on Joaquin Phoenix:
Joaquin Phoenix wants to be a singer? We’ve got the perfect lead single for him!
Joaquin Phoenix: His most memorable roles

addCredit(“Kevin Winter/Getty Images”)

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