Before Charli XCX transformed into the cultural force behind BRAT, her path through the 2010s was one of the most radical, thrilling shape-shifts in modern pop music. Moving from early Tumblr-wave dark pop into the machinery of mainstream pop-punk, she eventually broke away to construct her own futuristic sonic world. The run between 2013 and 2017 - spanning True Romance, Sucker, the Vroom Vroom EP, Number 1 Angel, and Pop 2 - represents the vital evolution where Charli rejected conventional stardom to become the undisputed architect of hyperpop.

How Charli XCX's career took off with True Romance and Sucker

Charli XCX arrived on major label radar with her 2013 debut album, True Romance. Steeped in witch-house textures, synth-pop melodies, and goth-tinged disaffection, the record showcased her talent for writing massive hooks wrapped in alternative aesthetics. While critically adored, it remained a cult favorite rather than a chart-topping hit. That changed rapidly when Charli penned and featured on global smashes like Icona Pop’s "I Love It" and Iggy Azalea’s "Fancy," alongside her own cinematic solo hit "Boom Clap".

Targeting the mainstream radio machine, her 2014 follow-up Sucker pivoted toward loud, brash bubblegum punk and power-pop. Armed with crunchy guitar riffs and defiant cheerleader chants, songs like "Break the Rules" and "Famous" aimed straight for pop stardom. Yet behind the success, Charli grew frustrated with the rigid expectations and polished formulas of major-label pop. Rather than playing by traditional industry rules, she chose to tear them down entirely.

The industrial pivot: How Vroom Vroom redefined the boundaries of pop music

In early 2016, Charli XCX teamed up with revolutionary British producer SOPHIE to release the four-track Vroom Vroom EP under her own newly launched imprint. The release was a total sonic shock to the system, abandoning polished radio conventions in favor of metallic clanks, roaring engine samples, and crushing basslines. Sugary, pitch-shifted vocals collided directly with aggressive, spoken-word flexes to create an entirely new sonic language.

Initially divisive among traditional critics, Vroom Vroom quickly accrued a massive cult following and is now widely cited as the ground zero for hyperpop. By merging high-energy underground rave music with ultra-catchy pop songcraft, Charli and SOPHIE created a blueprint that fundamentally altered underground electronic music and redefined what mainstream pop could sound like.

The legacy of Charli XCX's influential mixtapes Number 1 Angel and Pop 2

Relieving herself of traditional album rollout constraints, Charli appointed PC Music founder A.G. Cook as her core creative partner and released two free mixtapes in 2017. First came Number 1 Angel in March 2017, a glossy, emotionally charged collection featuring artists like MØ, CupcakKe, and Uffie that effortlessly blended mainstream dance-pop with surreal, metallic electronics.

Later that same year, she unleashed Pop 2 in December 2017, a project that critics and fans alike frequently cite as a watershed moment for 2010s pop music. Featuring collaborations with Carly Rae Jepsen, Caroline Polachek, Tove Lo, and Pabllo Vittar, Pop 2 weaponized heavy Auto-Tune, pitch manipulation, and sprawling guest features from across the global queer and indie-pop underground. Rather than chasing existing radio trends, Pop 2 predicted where pop music was headed years before the rest of the industry caught up, establishing Charli as the visionary leader of an entire musical movement.