PD Shin Jung Soo of MBC's 'I Am a Singer' has sent a love call to SISTAR's Hyorin! During an interview, the PD revealed, "She's a friend that I would love to have on the show out of all of the other idol singers. She has surprising vocal talent and performance skills, as well as an exceptional ability in understanding songs. She's a treasure that show producers can only hope to have." SISTAR's Hyorin has been on the rise every week with her performances on KBS's 'Immortal Song 2', creating a 'Hyorin-syndrome' amongst netizens who became captivated by her vocal talent. Now that the highest official of 'I Am a Singer' has praised her, attention is being put on whether Hyorin will make the advancement and move on from 'Immortal Song 2' to 'I Am a Singer'. Source + Photos: Joy News 24 via Naver