In what year was the album “Chumu Chumu” released by NewS?

In what year was the album “Chumu Chumu” released by NewS?: The album “Chumu Chumu” was released in 2015 by NewS, featuring 3 tracks.
What is the most successful song from the album “Chumu Chumu” by NewS?: “Hi Wa Mata Noboru” is the biggest hit from the album “Chumu Chumu” by NewS.

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