The Biebs called into Ryan Seacrest’s radio show from Australia on Monday and spoke about a range of topics, including his increasingly muscular body, new tattoos, wrapping up his world tour, the new track “Confident,” his upcoming movie Believe, Christmas plans, and how he’s able to wear his pants so low.

When Seacrest asked about media criticism of Bieber and whether Believe will show what really goes on his life, the singer turned serious.

“I’m becoming a man, but I’m still 19, I’m still finding myself,” said Bieber. “When I have the media attacking me everyday… It’s no less bullying than what happens in schools. These people calling me names, and saying things, they don’t know what’s true or not.”

He later explained, ”Of course, I make mistakes growing up, as everybody does, and I’m not perfect, I’m not a robot. People forget I’m a human being. I’ve got to make mistakes, and grow from it, and get stronger, and that’s what I plan to do.”