New Southern Song??? (From end of Hustle & Flow)

[Shawn Nutt]

What's the song at the end of Hustle & Flow and who is it by? I've heard it before but I don't remember. Here's some lyrics from it.

Everybody wanna be the king of the South when/They ain't runnin' a damn thing but they're mouth.
No doubt it's all good, ya'll just state ya'll opinion./But in the South and in the hood it's understood without sayin' it's a given.

[BigBDrugStores]

I'm a king-T.i P$C lil scrappy