2019 - 2 tracks

Item OST Part.1 - Son Seung Yeon

2018 - 2 tracks

The Undateables OST Part. 5 (Single) - Son Seung Yeon

2018 - 2 tracks

Less Than Evil OST Part.1 - Son Seung Yeon, Black Nine

2018 - 2 tracks

The Undateables OST Part.5 - Son Seung Yeon

2016 - 1 tracks

The Birth Of A Song Part.1 - Na Yoon Kwon, Linus’ Blanket, Son Seung Yeon, Yoo Seung Eun

2016 - 1 tracks

The Birth Of A Song Part.3 - Son Seung Yeon

2016 - 2 tracks

Two Yoo Project – Sugar Man Part.22 - Lee Hae Ri, Son Seung Yeon

2016 - 2 tracks

Without You (Single) - Son Seung Yeon, Andup

2016 - 1 tracks

MS. BURGUNDY - Son Seung Yeon

2015 - 2 tracks

The King's Face OST Part.3 - Son Seung Yeon

2015 - 2 tracks

Warm And Cozy OST Part.5 - Son Seung Yeon

2014 - 1 tracks

Sonnet Blooms - Son Seung Yeon