The guest artist(s) must attempt to guess six contestants who are 'good singers' (skilled vocalists) and who are 'bad singers' (tone-deaf vocalists) without hearing them singing. They also help with a group of panelists under the Tone-deaf Detective Team (also called SING-vestigators). After they eliminate one to two contestants in each round, they reveal their singing ability ...
为了迎合市场，年轻的音乐家保忠因涉嫌“盗版”，饱受舆论的攻击。无奈之中，他放弃一切跑到海边城市美奈，决心创作一首轻音乐以重振自己的名声。在偶遇失恋的李蓝后，他的逃避之行变得更加“有趣”，并写出了心灵深处的旋律。
