Question: What agency discovered an American singer based in South Korea who was on the first season of a South Korean reality show that aired every Friday on KBS 2TV from April 8 to December 2, 2016 ?
Sentence (from "Sister's Slam Dunk"): The show's first season featured an all-female cast consisting of Ra Mi-ran, Kim Sook, Hong Jin-kyung, Min Hyo-rin, Jessi and Tiffany, and followed their attempts at fulfilling each cast member's dream using a budget of ₩2,196,000 or approximately $2,000.
Relevant evidence: No