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Niall Horan

Jeff Kravitz/FilmMagic

They grow up so fast.

"I'm 19! Wohoooo !" One Direction cutie Niall Horan tweeted, heralding today's celebration of the big 1-9.

But, after everything that's happened recently, what more could the singer want for his birthday? Need a refresher on what we're referring to?

First of all, One Direction rocked the MTV Video Music Awards, winning multiple Moonmen and rocking the hallowed VMA stage for the first time. And, most importantly, while snagging one of their trophies, Horan scored a lip-lock from presenter Katy Perry

What a slick fellow! 

He was also blink-and-you'll-miss-it linked to Demi Lovato, but they're just friends, and he and the rest of his One Direction mates got to have a little cooking date with Justin Bieber

So, you tell us, Niall, what more do want?!