Lizzo has the world in the palm of her hand. Well, in her tiny purse.

When the “Good as Hell” songstress walked the red carpet at the American Music Awards in November, she accessorized a peach babydoll Valentino dress with a bag the size of a matchbox, which she nonchalantly dangled off her long, crystal-studded nails.

Fans flipped for the novelty purse, and it went viral online. Memes abounded about what the tiny bag contained: “My life savings”; “My self esteem”; “My patience with men.” Lizzo weighed in on Instagram, explaining that the bag was just “big enough for [the f - - ks I] give.”

“Honestly, I thought it was going to be a gag moment, but I didn’t expect [the reaction],” Lizzo’s stylist, Marko Monroe, tells The Post. “When we got to the dressing room to get ready for her performance, the memes were already happening and the Internet was blowing up.”

Lizzo, 31, is no stranger to looks that make headlines. The singer didn’t just rock a fluffy full-length pink-feather-covered Marc Jacobs cape on the Met Gala red carpet — she traipsed through security in it at JFK Airport. Not only did she wear butt-bearing chaps courtside at an LA Lakers game in December — she twerked for the Jumbotron in them and showed off her thong.

All eyes are on the diva this weekend, who’s performing at the 2020 Grammy Awards at the Staples Center in LA, airing Sunday night at 8 p.m. ET on CBS.

She’s also the awards show’s most-nominated artist this year, with eight nods including for Album of the Year and Song of the Year for “Truth Hurts.” And Monroe promises she’ll make it worth fans’ while.

“We always try to give you sexy,” he says. “She’s sexy, so we have to make that a priority in anything we do. It’s top priority. And she’s got such a huge personality, so it’s important that her style is reflective of that — and that it’s fun!”

But Lizzo wasn’t always so confident.

Born Melissa Viviane Jefferson in Detroit, Lizzo spent most of her childhood in Houston. Even then, music was a bright spot in her life: She was a self-professed “band geek” who loved to play the flute, which she still incorporates into her songs and shows today.

But the burgeoning musician also struggled with poverty and, after the loss of her father in 2010, homelessness. She was self-conscious about her size and looks — an anxiety that she had to overcome before releasing her first major-label EP, “Coconut Oil,” in 2016.

“I learned to actually look all of my insecurities in the face, call them by their name, and fall in love with them,” she told “60 Minutes” in October.

Now Lizzo calls herself “fat” with pride. This past summer, she scored a beauty contract with Urban Decay cosmetics. She announced the partnership at a concert: “I’m a fat black girl . . . with natural kinky hair, bitch . . . Crooked-ass teeth, and I’m on the f–king front of a beauty counter all over the f–king world!”

Her famous fans say that authenticity is her most compelling trait.

“She’s unapologetic,” TV host and Harlem native Bevy Smith tells The Post. “She’s an amazing talent and artist, and she’ll be that whether she’s a size 2 or a size 22.”

Designer Jeremy Scott also praises her individuality and says it puts her in the same league as Ariana Grande, Rihanna, Miley Cyrus and Katy Perry.

“That ability to be able to switch frequencies but remain themselves, that’s a real testament that the thing that’s inside them is so much bigger than what they’re putting on,” he says. “That resonates deeper.”

He remembers pitching Lizzo on

a sequined dress

festooned with the word “Siren” for her August Video Music Awards look. She was game, Scott says — but only if she could make it her own.

“We were thinking about doing a cape and she was like, ‘I’m really thinking about a boa,’ ” Scott says. “She definitely has a point of view.”

Lizzo’s take on power dressing is fluid: She can go from a trench-coat dress designed by Harlem designer Dapper Dan for Gucci to a frilly gown covered in one of her favorite signature details, marabou feathers.

You can think of those layers as a metaphor, says Lisa Cortés, a former music-industry executive and the director of the documentary “The Remix: Hip Hop x Fashion.”

“The biggest thing about her is that she gives voice to the concept [that] we’re not monolithic,” she tells The Post. “[Women] are so multifaceted . . . I think it’s refreshing to see someone who is exploring that within her voice and within her expression.”

Her makeup artist, Alexx Mayo, agrees.

“She always talks about how we get to play dress-up every day,” he tells The Post. “If we’re giving her this sexier pinup or vixen look, she turns into that character. If it’s something more bright and cheerful, she becomes more playful. I think she really enjoys those different aspects of herself.” And “when it comes to a look, I don’t think she ever gets scared,” he says, adding that Lizzo often gets ready without a mirror in sight.

Stylist Monroe agrees. He met Lizzo when a mutual friend asked him to help pull looks for her “Water Me” music video in 2017, and he’s grateful that she took a chance on him.

“I went to school for sculpture. I’m from Arkansas. I don’t have a fashion background. I taught myself how to sew. I didn’t have any experience styling. I didn’t have the background,” says Monroe, who is responsible for most of her stage costumes and red-carpet looks. “But she believes in the people around her, and she loves them to death. That makes it feel not like work — like we’re kids playing.”

Both Smith and Cortés compare Lizzo to Bessie Smith, a black blues artist in the 1920s and ’30s who sang about sexual freedom, independence and respect, and who also broke fashion boundaries — and had a penchant for feathers.

“She’s a part of a community of vivacious African-American women who are trendsetters, who are unapologetic in telegraphing who they are,” Cortés says of Lizzo. “[She] can take a dime and make it into a million dollars.

“Talk about not only claiming a place at the table, but buying the mansion.”

— Additional reporting by Elana Fishman