Siblings Charika, Cleo, Crystal, and Japhet Palange decided to do mash-ups of their favorite K-drama songs and upload them to social media for fun. Their K-drama OST mashup recently went viral, which included covers of "Solitary Voyage" from A World of Married Couple, "Picture Of My Heart" from Crash Landing On You, "Can You See My Heart" from Hotel Del Luna.