In what year was the album “Oh-E-Oh” released by 에이프릴?

In what year was the album “Oh-E-Oh” released by 에이프릴?: The album “Oh-E-Oh” was released in 2019 by 에이프릴, featuring 3 tracks.
What is the most successful song from the album “Oh-E-Oh” by 에이프릴?: “Oh-e-Oh” is the biggest hit from the album “Oh-E-Oh” by 에이프릴.

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