- YOZORA - 자꾸만 웃게 돼 (The Reasons of My Smiles)
- 夫硕顺 - 자꾸만 웃게 돼
- 瑄瑄 - The Reasons of My Smiles (Eng Ver.)
- 夫硕顺 - 자꾸만 웃게 돼
- Shin Giwon Piano - The Reasons of My Smiles
- Keria/Erika Fascio - The Reason of My Smile
- 周子煜 - 자꾸만웃게돼(The Reasons of My Smiles)
- Brown Eyed Girl - the reasons of my smiles
- Rosie xo/Brown Eyed Girl - the reasons of my smiles (sped up)
- Gita Nofieka Dwijayati - The Reason of My Smiles
- Dark Academia/Brown Eyed Girl - the reasons of my smiles (slowed + reverb)
- Bitter Sugar - Reason of My Smile
- Nightcore Girl - the reasons of my smiles (nightcore)
- 椰子 - The Reasons Of My Smiles
- Jay Kim - You Are My Everything
- Hunter王昊东 - Oh love
- Jeol - You're The Reason of My Smile
- Monika Mehta - The Reason for My Smile Is the Thought of You
- 田中ミズホ - 笑顔の理由
- Paul Martin - Great Mystery Of My Time (Emotional Piano G Minor)