Oops, it doesn't look like 'brendon urie brendon urie day' is a national day..

Other days

cat girl

Cat Girl Day

donate your hair

Donate Your Hair Day

boy friend

Boy Friend Day

youth

Youth Day

healing

Healing Day

promposal

Promposal Day

hiv awareness

Hiv Awareness Day

Emoji Day

ask out your crush

Ask Out Your Crush Day

lumpy rug

Lumpy Rug Day