Olivia Rodrigo is opening up about her peers.

The 20-year-old “Vampire” singer-songwriter got candid in a new Guardian profile, out now.

During the conversation, she spoke about her thoughts on other pop stars, and whether any musicians have offered her some advice about the industry.

When speaking about Billie‘s Happier Than Ever, she said “Oh my God, this b-tch read my diary!”

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And as far as advice about the industry, she said that Billie is “really sweet and supportive.”

“But it’s a unique experience. There’s no rulebook. That’s the beauty and the anxiety of this job. You forge your own path,” she added of the career.

She also addressed speculation about whether her song “Vampire” is about another pop superstar.