Seulgi previously drew attention as both Kyuhyun and the f(x) members mentioned her on 'Radio Star'. Kyuhyun said during the show, "Seulgi, I hope you're practicing well. I hope you'll debut and become successful."
Many have been referring to the not-yet-debuted Seulgi as "Kyuhyun's girl", and he's taken to Twitter to clarify his position on the matter. He posted, "Ha... you're making me log into Twitter... These news headlines are not right T.T She's not my girl... I'm just one of many sunbaes who want her to do well! Anyway, S.M. ROOKIES? I'm ending this by saying that I hope that Seulgi, Jeno, and Taeyong become the romantic ideals of many people, not just one person. Keke."