In what year was the album “Blå dag” released by Hellbillies?

In what year was the album “Blå dag” released by Hellbillies?: The album “Blå dag” was released in 2021 by Hellbillies, featuring 2 tracks.
What is the most successful song from the album “Blå dag” by Hellbillies?: “Blå dag” is the biggest hit from the album “Blå dag” by Hellbillies.

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