Kevin Durant -- My Favorite Rap Song Is ... Not By Jay Z

Kevin Durant and Jay Z might be business partners -- but that's apparently where it stops ... 'cause when Durant recently named his favorite rap song, Beyonce's husband was NOT the culprit.

The Durantula recently sat down for an interview at an NBA2K15 event where he was asked a bunch of personal questions, including what song gets him ready to go out and drop buckets.

Check out the video ... if you're expecting some Roc Nation loyalty, you ain't gonna get it.