In what year was the album “ラブソング/共犯者” released by Okamoto's?

In what year was the album “ラブソング/共犯者” released by Okamoto's?: The album “ラブソング/共犯者” was released in 2012 by Okamoto's, featuring 3 tracks.
What is the most successful song from the album “ラブソング/共犯者” by Okamoto's?: “ラブソング” is the biggest hit from the album “ラブソング/共犯者” by Okamoto's.

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