Kodak f/ Pimp C - "The Sweat Shop" (Sweatshop, 2007?)
I'm starting to think that there should be a sub-genre of UGK features called "The Video Only Pimp C Guest Verse." Man, if you have the .mp3 of this joint, you know where to find me.
Props to Purple Mud & Purple Bud for the video.
[UPDATE: …and props to PM&PB for hittin' me with the audio.]