And the music video has arrived!

The new video for "I Hit It First" debuted and not only is the chick in the video a almost exact replica of Kim Kardashian, but she also reenacts (non-sex) scenes from the couple's infamous sex tape.

Even though J won't actually admit the song's about Kanye West's baby mama ... all 3 min and 38 seconds of doppelganger footage PROVES otherwise. 

Seriously, it's not an exaggeration, it's FULL of Kim K references ... from her reality show, to her ass, to her XXX vid.

And Ray J sneaks in some Kanye shots too ... Check it out: