Knetz react to the collaboration of Singer IU and Actor Lee Seunggi on YouTube.

Post response : 775

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 Netizen comments :

- Is it on YouTube now?? Why I can't play it? 

- It's playing, right? Here.

-  I knew it was 12 o'clock.

- Lee Seunggi has a great voice.

- Heol. 

- Wow.. 

- Have you two meet??