In what year was the album “Klavertje 4” released by Fmg?

In what year was the album “Klavertje 4” released by Fmg?: The album “Klavertje 4” was released in 2020 by Fmg, featuring 12 tracks.
What is the most successful song from the album “Klavertje 4” by Fmg?: “Hoe dan” is the biggest hit from the album “Klavertje 4” by Fmg.

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