In what year was the album “23” released by Hyukoh?

In what year was the album “23” released by Hyukoh?: The album “23” was released in 2017 by Hyukoh, featuring 12 tracks.
What is the most successful song from the album “23” by Hyukoh?: “Tomboy” is the biggest hit from the album “23” by Hyukoh.

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