Niall Horan, One Direction's most precious Irish gemstone, turns 19 today. It's been a crazy ride for our dear Nialler, who's quickly moved from schmoozing with Katy Perry to win a spot on The X Factor to kissing her on the MTV stage while accepting his very own Video Music Award.

During his rise with 1D, we've learned a lot about the guitar-playing, Mullingar native who'll support Derby F.C. until he's old and grey, thanks to his continuously entertaining and informative tweets. To celebrate his big day, we've identified some our favorite Twitter quips from the group's unofficial mouthpiece, along with 19 photos to help make you feel like you're celebrating right alongside with him. Check it out below.

 

 

 

 

 

 

 

 

Niall Horan Turns 19

 

 

 

 

 

 

Niall Horan Turns 19

 

 

 

 

 

 

And one for good luck: