Niall Horan got super nostalgic on the 6th anniversary of his X Factor audition

If we ever needed a reminder of how old we are, this is it. Niall Horan took to Twitter to remind everyone that it is SIX years since he first auditioned for the X Factor.

Wow. Hard to believe that my audition was 6 years ago . Did a lot of growing up since then . Thanks for everything so far . Love ya

— Niall Horan (@NiallOfficial) April 15, 2016

Six years since Katy Perry had the deciding judges vote and said that Niall's version of Neyo's So Sick deserved a place in the next round. The Mullingar man said that it's hard to believe (we're with you there Niall) and also said that he's done a lot of growing up since then. Relive Niall's audition all in its glory below. https://www.youtube.com/watch?v=40_iV3MHIOU