Oops, it doesn't look like 'debut album day' is a national day..

Other days

youth

Youth Day
donate your hair

Donate Your Hair Day
cuddle up

Cuddle Up Day
lash

Lash Day
prosecco

Prosecco Day
boyfriend

Boyfriend Day
stud

Stud Day
eat what you want

Eat What You Want Day
hoodie

Hoodie Day
believe

Believe Day