How do you say "Hmm... that's random" in Korean about something bizarre you see?
Situation: You're at a famous art museum in Paris. All the paintings are like Monet or Van Gogh. Every painting you see is famous and high class, except there's one badly drawn cartoon of Justin Bieber in the room.

What would you say?
In English you'd say something like, "Hmm... that's random. Why is that there."

Question

How do you say "Hmm... that's random" in Korean about something bizarre you see?
Situation: You're at a famous art museum in Paris. All the paintings are like Monet or Van Gogh. Every painting you see is famous and high class, except there's one badly drawn cartoon of Justin Bieber in the room.

What would you say?
In English you'd say something like, "Hmm... that's random. Why is that there."

Answer

어? 이건 뭐야? 이런게 왜 여기 있지?
"Uh, what is it? Why is this kind of thing here?"

Answer

"Hmm... that's random. Why is that there.

이런 .... (실망,disapintment) :  " 이런.... 마구잡이군.  저게 왜 저기 있는거야?"
어 ....  ( 약간의 놀라움, a little bit surprise)