December와 J-Cera가 함께 발표한 디지털 싱글입니다.
Tracklist
1. J-Cera - 혼자왔어요
2. December - 혼자왔어요
December - Honesty (2010)
December - Tears In Heaven (2010)
December - Cho Young Soo+All Star (2011)
December - Beautiful Woman (2011)
December - Unfinished (2012)
DK - Endless Love (2011)
DK & 최진이 - She's So Lovely (2011)