In what year was the album “Hey Mama!” released by EXO-CBX?

In what year was the album “Hey Mama!” released by EXO-CBX?: The album “Hey Mama!” was released in 2016 by EXO-CBX, featuring 5 tracks.
What is the most successful song from the album “Hey Mama!” by EXO-CBX?: “Hey Mama!” is the biggest hit from the album “Hey Mama!” by EXO-CBX.

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