For some inexplicable reason, the legendary rapper has become the TV pitchman for the law firm of Winton & Hiestand Law Group ... a personal injury firm in Louisville, Kentucky.
Chauncey Hiestand tells TMZ ... he and P became friends after Hurricane Katrina. P is from New Orleans, and lots of people from his hometown moved to Kentucky afterward.
Hiestand says Master P's pitch was a gesture of appreciation.
The spot sounds genuine ... until then end, when P drops his trademark "Uhhh."