Oops, it doesn't look like 'song on the eve of independence day' is a national day..

Other days

Tulip Day

Girl Friend Day

Embarrass Your Best Friend Day

Nail Polish Day

Tell Ur Crush You Like Them Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Tell A Fairytale Day

Pumpkin Day

My Little Pony Day

Lisp Day