Confession (고해) (Remake song)
Let's Go on a Vacation (여행을 떠나요) (Remake song)
Will You Marry Me (결혼해 줄래) (feat. Bizniz)
Like The Beginning, Just Like Then (처음처럼 그때처럼) (feat. Kang Min-kyung from Davichi)
Smile Boy (Rock ver.) (with Kim Yuna)
Smile Boy
Losing My Mind (정신이 나갔었나봐)
From Now on I Love You (지금부터 사랑해)
Time for Love (연애시대) (feat. Ra.D, narr. Han Hyo-joo)
Last Word (마지막 그 한마디)
Last Word (마지막 그 한마디) (Piano ver.)
I'm Going to the Military (나 군대 간다)
Meet Someone Like Me (그런 사람)