What caused Liam to turn to wild partying? Turns out fame and even the One Direction fans were getting him down.
He explained, "I started drinking a lot and I began to get a bit tubbier...In fact, because of that I was getting fat jibes all the time, which hurt me."
That hurts our hearts so much, Liam. We remember when he took a lot of ish from fans for being heavier and now we know that it totally contributed to him partying the pain away.
He confessed: "I'm not afraid to say I went through a pretty bad stage. And for that time in my life, that was perfect for me. That's what I wanted to do and so I enjoyed myself."
Liam added that sometimes being away from home with One Direction was "hard" and drinking "helped me through it."
Luckily he noticed when he went too far, saying, "There were just a few times that I went over the limit with things and then I had to pull it back. I was very fortunate that I had lots of great people around me who said to me, 'Look Liam, you need to chill out a bit now.'"
We're happy he had people in his corner looking out for him – and that he listened. Too many celebs make mistakes along the way but they're surrounded by so many 'yes men' they don't realize the slippery slope they're on.
He also admitted that he's not a role model, adding that kind of pressure when you're young is "a difficult thing." Liam explained, "I'm going to mess up from time to time. Everyone does. I'm only human, and sometimes I let my guard down a little too much."