Fans crash All Time Low tour manager's wedding, get schooled by bride

In a Tumblr post, Kate Minton addressed the young girl who showed up to her wedding and very publicly lambasted her, calling her "childish and rude".

She revealed that the girl, who turned up with a friend in order to have photos taken with members of the pop punk band, lied to guests about being "Katie's cousin".

"I would guess that you are most likely young and unmarried.  I have to think that.  I doubt you had malicious intentions, but doing what you did trivializes the day.  You treated the most important day of our lives like a photo op. It’s just so important to think about how your actions affect others.  If you don’t think about how doing something might affect someone else, you might just not have the life experience to remind you to be cognizant of it.  If you think (even for a split second) that what you are doing might hurt someone and you do it anyways….wow.  That just makes me sad," she wrote, before asking the girl and her friend for an apology.

Talk about awkward...