Roy Kim, winner of the audition program Superstar K4, has finally made his debut on Twitter. His agency, CJ E&M, tweeted a photo of him in the studio through his official Twitter account with the message, "This spring, Roy Kim will come visit you." The talented musician is currently working on his debut album after taking the #1 spot at Superstar K4 where he competed against many talented individuals. Roy Kim will perform with one of his favorite musicians, Jason Mraz, when he visits Korea in May. Not much information has been disclosed about the debut album but recently the musician tweeted a teaser to give fans a taste of what to expect: Not sure who Roy Kim is? Check out his impressive covers of "Creep" and "Call Me Maybe" (he also did a cover of Bon Iver's hit single, "Skinny Love"): Are you a fan of Roy Kim? You can follow him on twitter: @official_roykim (Source: