In what year was the album “Sixth Sense” released by Brown Eyed Girls?

In what year was the album “Sixth Sense” released by Brown Eyed Girls?: The album “Sixth Sense” was released in 2011 by Brown Eyed Girls, featuring 7 tracks.
What is the most successful song from the album “Sixth Sense” by Brown Eyed Girls?: “Sixth Sense” is the biggest hit from the album “Sixth Sense” by Brown Eyed Girls.

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