Billie Eilish fears she's been "stunted" by finding fame as a teenager

She told the Los Angeles Times newspaper: "I'm finding I'm having kind of a hard, weird time being in my 20s. I just didn't ever think about how I wouldn't be the youngest person in the room forever.

"At the same time, fame really stunts you. So I find myself acting like a kid sometimes because I'm like, 'Yeah, I got frozen in time.' When I see other pop stars, I see that they're still 16 a little bit. It's kind of depressing."

She added: "I'm a different person - I just didn't really grow. I didn't really become an adult."

In the interview, the singer discussed her difficult relationship with life in the public eye, admitting she worries being famous ruined her life. She said: "I thought, this is just how my life is gonna be. I'll never get to go outside again, and I'll never feel like a person ever again.

"Every room is gonna be, 'It's Billie Eilish!' and that's gonna make me eventually kill myself."

It comes after Billie admitted she felt incredibly isolated after becoming famous because she was deserted by all of her friends.

Speaking on the BBC podcast 'Miss Me?', she told hosts Lily Allen and Miquita Oliver: "Well I lost all of my friends when I got famous.

"I suddenly was famous and I couldn't relate to anybody. It was tough. It was really hard."

Billie went on to reveal she saw how much her life had changed when she realised most of the guests at her 20th birthday party were people on her payroll.

She added: "It was my 20th birthday and I remember looking around the room and it was only people that I employ. And all 15 years or more older than me."