Oops, it doesn't look like 'main vocal mj day' is a national day..

Other days

bow tie

Bow Tie Day
ride the wind

Ride The Wind Day
fiancee

Fiancee Day
lisp

Lisp Day
cuddle up

Cuddle Up Day
self care

Self Care Day
offer

Offer Day
pumpkin

Pumpkin Day
kiss a brunette

Kiss A Brunette Day
singles

Singles Day