Celebrating the 500th episode of Late Night With Jimmy Fallon last week, director Cameron Crowe discussed his new documentary Pearl Jam Twenty, due out in theaters on September 20, 2011. He also brought some goodies along with him and there’s video proof. It’s like a Pearl Jam party on my laptop!

Check out all the clips of Crowe and Pearl Jam, who performs a song, from the episode here below.

Here, Cameron Crowe discusses his forthcoming film, Pearl Jam Twenty which documents the band’s meteoric rise to super-stardom from humble beginnings:

Here, Jimmy and Eddie Vedder sing “Balls in Your Mouth,” Jimmy’s protest song about the tar balls left behind in the Gulf following the mega-heinous BP oil spill:

And just for laughs and giggles, here’s a clip of Jimmy Fallon’s audition for Crowe’s Almost Famous movie, plus the actual scene:

Bonus: Watch Pearl Jam perform their new song “Ole”: