Listen to Flashback (Originally Performed By After School 애프터스쿨) [Karaoke Version] online. Flashback (Originally Performed By After School 애프터스쿨) [Karaoke Version] is an English language song and is sung by Karaoke Masters. Flashback (Originally Performed By After School 애프터스쿨) [Karaoke Version], from the album Karaoke Kids K-Pop, was released in the year 2013. The duration of the song is 3:05. Download English songs online from JioSaavn.