On Friday, December 28th, Madison de la Garza (Demi Lovato's little sister) turned 11 years old, and se had a big surprise!

Imagine if Niall Horan himself sent you a special birthday message!  That's what happened to Maddy last Friday. When she read all her birthday messages, there was this sweet one from Niall:

"Massive happy birthday to @Maddielovesyou1 have an amazing day honey! Lots of love!"

We think Demi might have ad someting to do with Niall's message. 

Wambie girls, what would you do if a celeb sent you a personal message on your birthday?

Source: M Magazine