Oops, it doesn't look like 'pick on a celebrity day' is a national day..

Other days

bounce

Bounce Day
lost sock memorial

Lost Sock Memorial Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
pampering

Pampering Day
special education

Special Education Day
hiv awareness

Hiv Awareness Day
nail polish

Nail Polish Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
girl friend

Girl Friend Day
me

Me Day