HWANG MIN HYUN 'OUR' Official MV

In the Korean comments

One comment reads, in translation, “A handsome voice to go with a handsome face,” pairing the same compliment across his appearance and singing.

What the words mean

잘생긴 목소리 (jalsaenggin moksori, “handsome voice”) is not about a voice literally looking handsome. Here, “handsome” playfully means attractive-sounding, echoing the comment’s praise of his face.