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"): Among the things and people mentioned in the song are the Chevrolet Monte Carlo and Cadillac Eldorado (both General Motors cars), the television show "Showtime At The Apollo" and its longtime host Kiki Sheppard, and the R&B singers Teddy Pendergrass and Freddie Jackson.
Relevant evidence: No