July 29, 2015Sleepy & JiEun – Cool Night / I’ll Give You My All [Yu Huiyeol’s Sketchbook] K-pop Girls
July 4, 2015[HOT] SLEEPY(with. Song Ji eun) – Cool Night, 슬리피(with. 송지은) – 쿨밤, Show Music core 20150704 K-pop Girls
March 6, 2015[MV] Song Ji Eun(송지은) (Secret) _ Person who I miss(보고 싶은 사람) (빛나거나 미치거나 OST Part.2) K-pop Girls