Greta Thunberg’s sister is a voluptuous pop singer who doesn’t give two hooters about climate

Climate activist Greta Thunberg and her younger sister may share a family heritage, but that’s where the similarities end.

In a recent feature by Interview Magazine, it was revealed that the 20-year-old Beata MonaLisa, AKA Bea, has “carved out an identity worlds apart from her sister’s clean-cut activist image.”

Speaking virtually with the outlet’s Billy Parker, the singer explained that she “started dancing when I was three and singing when I was seven. I performed in shows at school, and everyone thought I was annoying.”

“I was bullied by everyone,” she added.

Meet Greta Thunberg’s little sister. Yes, really. At 20, Beata MonaLisa has become one of the internet’s most captivating performers, turning Whitney Houston covers into high-camp pop spectacle. We caught up with the singer, dancer, and multihyphenate ahead of her debut album.…

— Interview Magazine (@InterviewMag) July 11, 2026

Asked about her name, she explained, “I was born with it. It’s from my grandma Mona and great grandma Lisa.”

Her blunt response when asked to talk about her activist sister, Greta, was, “I’m not responsible for other people’s lives.”

On her unusual singing style, she said, “I’m self-trained. I was cast as Edith Piaf, and I played that role for five years, from 12 to 17. Imagine singing her songs every single day for five years.”

Greta Thunberg’s sister goes viral for bizarre vocals while performing at an LGBTQI+ event.

Beata Thunberg, who goes by the name Beata Mona Lisa, posted a singing video showing off her bizarre voice on Instagram at the same time her sister, Greta, was being detained in Israel. pic.twitter.com/4taOuUWXgG

— Oli London (@OliLondonTV) June 13, 2025

She revealed that her new studio album has a “clear message. Pro-queer, anti-macho.”

“Are you queer?” Parker asked.

“No, but my fan base is. I was invited by the host of Drag Race Sweden, Robert Fux, to sing at a queer event. It was the best night of my life. I felt like I was accepted as an artist for the first time. It was thanks to the queer community,” she responded.

“So, you’re already a gay icon,” Parker remarked, prompting the reply, “If they say so.”

This is Greta Thunberg’s sister.

You’re welcome for this information. pic.twitter.com/XqyO0nNFfQ

— Chrissie Mayr🇺🇸 (@ChrissieMayr) July 12, 2026

Though on a very different path from her sister, the performer is just as outspoken and has strong opinions.

“I have many straight male producers who tell me how to sing. They want to feel like they’ve taught me. A loud, young female is very provocative, especially to them because they want to have control,” she said. “The album’s about the freedom of identity and empowering women. I have a song coming out where I make fun of Trump.”

“On stage, I give no fucks. Off stage, I’m more sensitive,” she explained. “Off stage I’m humble and sensitive. On stage, I’m rude. You have to make a character, so if Bea gets critiqued, it doesn’t feel personal.”

Asked to define success, she replied, “Maybe it’s a feeling. You can be worldwide famous and not feel accepted, or you can have a small fan base and feel very successful.”

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