Son Seung Yeon - 나쁜 꿈 (Bad Dream) (OST Hand : the guest Part.2)
Son Seung Yeon - Might Love You First (OST The Undateables)
Son Seung Yeon - Love Is So Mean (OST Grand Prince Part.2)
Son Seung Yeon - 용서 못해 (Can't Forgive) (Live Ver.)
Son Seung Yeon - 일어나 (Wake Up)
Son Seung Yeon - 흔적 (Trail)
Son Seung Yeon - It's For You (OST Warm and Cozy Part.5)
Son Seung Yeon - The First Snow's Falling
Son Seung Yeon - Gaeureul Namgigo Gan Sarang