2018

• Dreaming of Spring (Winter Sleep) - Mystery Queen 2 OST
  

2017

• Only a Day Now (working title)                          - Piece of BtoB vol. 7
• Those Times (working title)                                  - Piece of BtoB vol. 7
• Ambiguous (with Hyunsik, Sungjae)                -Fight For My Way OST
  

2016

• Fingertips Love -with Changsub and Various artists
  
• For You (with Minhyuk, Changsub, Ilhoon) -Cinderella and Four Knights OST
  

2015

• I Miss You (with Mi Yoo) -Mask OST
  
• Goodbye Sadness (with Changsub, Ilhoon) - Sweet, Savage Family OST
  

2014

• Back In The Days -Cube Voice Project Part 2
  

2012

• Love Virus -with Yoo Sung-eun