In what year was the album “A Good Girl - EP” released by Baek A Yeon?

In what year was the album “A Good Girl - EP” released by Baek A Yeon?: The album “A Good Girl - EP” was released in 2013 by Baek A Yeon.
What is the most successful song from the album “A Good Girl - EP” by Baek A Yeon?: “A Good Boy” is the biggest hit from the album “A Good Girl - EP” by Baek A Yeon.

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