More Than 400 Strangers Show Up to Minnesota Girl's Birthday Party After Facebook Invite Goes Viral

Mackenzie's mother originally invited 10 girls, but none of them RSVP'd.

— -- More than 400 strangers showed up to Mackenzie Moretter’s 10th birthday party this past Saturday at a park in Shakopee, Minnesota, after all the girls originally invited cancelled last minute or never RSVP’d.

Mackenzie’s mother, Jenny Moretter, told ABC News today that her daughter has Sotos syndrome, a form of gigantism that causes kids with it to grow faster, experience speech and learning delays and have social disabilities.

“I originally invited 10 girls three weeks prior, but we got two cancellations and the other girls’ moms didn’t RSVP at all,” said Moretter, 38. “It’s happened to her on previous birthdays where she would end up sitting alone with family. I didn’t want it to happen to my daughter again this year.”

Last Friday, Moretter posted on several local community Facebook pages inviting families with daughters Mackenzie’s age to stop by.