As the winner of MNET's Superstar K competition, not only was Seo In Gook granted to a cash reward and album release, he was also given a chance to perform at MKMF. Although there were fears that his performance at MKMF will not happen after it was scrapped, fans did not have much to worry since MNET just rebranded MKMF as MAMA. And Seo In Gook had the stage all to himself as he did three separate performances, a collaboration with Baek Ji Young for her IRIS OST song, Don't Forget, dance stage with actress Hyun Juni and finally a rendition of his hit debut single, Calling You with a choir. Despite being a relative rookie, he really held his own and did himself proud.