Non Ti Scordar Di Me (물망초)
Mostly Philharmonic Ochestra, Tei, Park Sang Hyun
Operastar 2011, Pt. 6 - Single
Tei, Seo Jung Hak
N. Rota: The Godfather soundtrack
Parla Piu Piano (더 작은 목소리로 말해요)
Seo Jung Hak, Park Sang Hyun, Mostly Philharmonic Ochestra, Tei