Oops, it doesn't look like 'grammy girl day' is a national day..

Other days

law

Law Day
gallery

Gallery Day
donate your hair

Donate Your Hair Day
polyamory

Polyamory Day
china

China Day
youth

Youth Day
hoodie

Hoodie Day
cat girl

Cat Girl Day
latina equal pay

Latina Equal Pay Day
promposal

Promposal Day