AJ McLean is all in on being a girl dad — and ... doing something new and exciting like this and getting to have a nice ...

AJ McLean recalls Backstreet Boys struggling with their lives outside of music, including his battle with addiction.

For AJ McLean, Liam Payne was larger than life ... "For now, our thoughts are with his family, his friends, and the fans who loved him alongside us. We will miss him terribly.