With the release date looming closer by the day, Heaven's Postman's got everyone talking - with an agonizing kiss scene between TVXQ's Jaejoong and Han Hyo Joo, who wouldn't be curious? To add on to the anticipation, the first track of the OST, Rainy Sunday by Z'ta (??), was revealed today to the public's delight. With its laidback yet hopeful melody and sad undertones, this song's sure to be a favorite for many fans. Take a listen here: cr. dirah9305 What do you think of Rainy Sunday, hit or miss?