In what year was the album “8 Letters” released by Why Don't We?

In what year was the album “8 Letters” released by Why Don't We?: The album “8 Letters” was released in 2018 by Why Don't We, featuring 8 tracks.
What is the most successful song from the album “8 Letters” by Why Don't We?: “8 Letters” is the biggest hit from the album “8 Letters” by Why Don't We.

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