Tech N9ne Working On Patrick Mahomes Track, Sings Chorus!

Tech N9ne says Patrick Mahomes has been ballin' out so hard this season ... it's time for a new track about the Chiefs QB -- and he's giving TMZ Sports a sample of the chorus!!

Of course, the rapper is a ride-or-die K.C. fan who's stoked about the 9-2 start to this season.

But, Tech says he's SO fired up about it -- he's ready to get in the booth and hammer out a new track about the team's star QB.

The title? "Rollin' With MaHomies" ... and, gotta say, from the 3-second preview he gave us -- it sounds like it might be pretty legit.

Tech's made music about the Chiefs before ... remember "Wheels Like Hill" -- the banger about Tyreek Hill??

BTW ... in case there was any doubt -- Tech tells us he thinks Mahomes is the league's MVP ... and if the squad makes it to the Super Bowl, he's callin' dibs on the halftime show!