And one of those secrets? The moment she realized she didn't want to play Hannah Montana on the Disney Channel anymore.
According to Miley, she started to feel "ridiculous" playing the role when she turned 18.
"The minute I had sex, I was kind of like, I can’t put the fucking wig on again," she said.
"It just felt like...I was grown-up," she added.
She also told a story about a revelation she had while performing as a kid at Disneyland:
One time I went backstage at Disneyland, and Peter Pan was smoking a cigarette. And I was like, "That’s me. That’s the kind of dreams I’m crushing."