Olivia Rodrigo says she had a frightening encounter with law enforcement at the border while returning to the U.S. from Canada during her Guts World Tour.

Speaking to Jimmy Fallon on “The Tonight Show,” the singer-songwriter said she was intercepted at border control after handing over her passport for verification.

“They knock on the door and say, ‘We need Olivia.’ And I think I just played a few shows, maybe her daughter would like an autograph,” she said.

“And I’m coming out. It’s 3 a.m. and I’m delirious and they take me into a room and it’s an interrogation room and there’s like a big cop with a gun. And he asks, ‘Have you ever been arrested?’ I say, ‘No, I haven’t been arrested,'” Rodrigo continued.

“He asks, ‘Are you sure?'” she continued, adding that she was told she could “go to prison for lying to a federal agent.”

The singer explained: “I’m freaking out. I think I won’t be allowed into America. I’m so scared. I’m having a panic attack right now. After 30 minutes of interrogation he looks at me and asks: ‘What’s your name?’”

After spelling her last name to the officer, he told her, “Oh, there’s a girl that looks just like you, your age, who’s been arrested multiple times, and her name is Olivia Rodriguez,” she said.

“I was angry,” she added.

The “Vampire” singer has been on tour since February with 95 shows in the US, Canada, Europe, Asia and Australia. Their Canada shows in Montreal and Toronto took place in March. A Netflix special about the tour premiered this week.

Watch her “Tonight Show” interview below.