Oops, it doesn't look like 'forget the lyrics day' is a national day..

Other days

polyamory

Polyamory Day
self appreciation

Self Appreciation Day
stress awareness

Stress Awareness Day
kiss a ginger

Kiss A Ginger Day
pampering

Pampering Day
ormille

Ormille Day
coffee

Coffee Day
ride the wind

Ride The Wind Day
self care

Self Care Day
blanket fort

Blanket Fort Day