But DUH he didn't give up, coming back 2 years later with an even bigger voice, blowing all the judges away, and eventually landing him in the biggest boy band IN.THE.WORLD.
Now, he is thanking his fans and most importantly One Direction 'brothers' for everything they have achieved, and the fandom is crying in a cool way.
"7 years ago today my life changed forever, beyond my wildest dreams, I'd like to thank everyone who has helped me along the way...
"To my four band mates and brothers thank you so much along with all of our fans we really are 'the greatest team the world has ever seen'."
What we would do for the boys to come back...
It makes it even more adorable, that on the day Liam posted one of his first tweets, asking people to watch his audition.
How far they all have come.