Question: "So Fresh, So Clean" further propelled the sales of "Stankonia" after the success of which American alternative hip hop duo OutKast? 
Sentence (from "So Fresh, So Clean"): Ludacris, Layzie Bone of Bone Thugs-N-Harmony, Chilli of TLC and members of Goodie Mob make cameo appearances in the video.
Relevant evidence: No