BIG Mary-Kate Ashley Olsen Bridesmaids Nov7Mary-Kate OlsenWe know what you're thinking.

How chuffing rude of Mary-Kate Olsen not to invite us to her wedding.

Rage ye not.

Mary-Kate didn't get hitched, kids.

She merely dressed all in white avec head adornment merely to be a bridesmaid at her pal's wedding.

You see, the usual rules to wedding ceremonies don't apply in Hollywood.

Everywhere else, it's considered sacrilege for anyone other than the bride to wear the virginal hue. A wedding doesn't normally happen on the beach, either.

But in La-la Land, anything goes.

Check out Mary-Kate and Ashley Olsen in pictures here.