Singer Seo In Kook, known for winning the first season of 'Superstar K', has been accused of going under the knife recently because of the drastic transformation seen in his face. Accusations flew after the star's album jacket photo was released on March 24th. Netizens noticed that his jawline was much narrower and his nose was also sharper in comparison to last year's image. However, a representative of Seo In Kook's agency, Jellyfish Entertainment, has strongly denied the charges. They stated, "It's because he lost 3~4kg, and not because he got plastic surgery. It could also be the photo editing." Seo In Kook is scheduled to release his new record on March 31st. Source: Xports News via Nate