2017

• Lullaby (수면제) with Roco of Rocoberry
  

2016

• Starry Night with Lee Jin-ah -S.M. Station Season 1
  

2014

• Moonlight -Miss Korea OST
  

2012

• In Your Eyes -To the Beautiful You OST
  

2009

• One Year Later by Jessica
  
• Vanilla Love pt. 2 by Lee Hyun-ji
  

2008

• Vanilla Love by Lee Hyun-ji