In what year was the album “OH WOW” released by Olson?

In what year was the album “OH WOW” released by Olson?: The album “OH WOW” was released in 2018 by Olson, featuring 16 tracks.
What is the most successful song from the album “OH WOW” by Olson?: “Schon gut” is the biggest hit from the album “OH WOW” by Olson.

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