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"): The song was a moderate success, reaching #30 on the "Billboard" charts, #46 on the ARIA charts and further propelling the sales of "Stankonia" after the success of "Ms. Jackson".
Relevant evidence: Yes