Game's debut album, The Documentary just celebrated its tenth anniversary this weekend, and on top of making hip hop heads world-wide feel old, the Compton rapper decided to toast the occasion with a special concert.

When it was announced a couple weeks back, Game promised some "special guests", and since he was set to perform the album front-to-back, talk of a reunion with 50 Cent began amongst fans. When the event actually went down last night, Fif was a no-show, but the night was not without some exciting guest appearances. 

Game's mentor, Dr. Dre showed up on-stage (though he didn't rap, as the near-billionaire's presence is apparently a blessing in itself these days), while Kendrick Lamar took the mic to perform 50's hook from "Westside Story". 

You can watch some key moments from the show below.