In what year was the album “Okay” released by 稲葉浩志?

In what year was the album “Okay” released by 稲葉浩志?: The album “Okay” was released in 2010 by 稲葉浩志, featuring 3 tracks.
What is the most successful song from the album “Okay” by 稲葉浩志?: “Okay” is the biggest hit from the album “Okay” by 稲葉浩志.

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