The feeling of electricity was once again in the air as Lollapalooza got underway for its second day, since it not only unveiled the latest chapter for global pop icon Charli XCX, but a full day’s worth of festivities, activations and attractions.

In fact, it looked like it might be another “Brat Summer” as far as the neon green-adorned crowd was concerned, yet the co-headliner clearly switched her focus to the “Music, Fashion, Film” era, while offering the occasional “Wink Wink” to a pop/electroclash past.

Now more aggressive and assertive than ever, Charli (pictured the previous night accompanying Lorde) and a live band churned out such lower-fi bangers as “Rock Music,” “Card Declined,” “2007,” “Camera” and “SS26,” working every angle of the massive stage like the megastar she’s become and drawing in the dancing masses who populated practically every inch of the area.

In between, there were plenty of “Club Classics,” including the viral TikTok anthem “Apple,” the full-blown rave of “365/360” and the steamy choreography of “Guess,” in addition to the chilled out grooves of “party 4 u” and “No One Last Forever” to wrap a rebrand that was as enticing, exciting and intriguing as ever.

Though originally slated for earlier in the afternoon, rapper Lil Uzi Vert’s weather/travel-related cancelation allowed the “Midnight Sun” of Zara Larsson to take his later place and pierce through the clouds in the process, drawing onlookers as far as the eye could see similar to Chappell Roan’s relatively recent record.

The Swedish superstar-in-the-making certainly rose to the occasion thanks to the endorphin-spiked sugar rushes of “Can’t Tame Her,” “Hot & Sexy,” “Pretty Ugly” and “Symphony,” suggesting it won’t be long before the frequent hitmaker closes the entire affair.

German DJ/singer/songwriter HorsegiirL was instantly recognizable in her animal-themed mask, but it was a happy hardcore approach to the turntable throughout “Nature Is Healing” and its earthy imagery that had hands raised high and at least one inflatable horse starting what’s bound to be an increasing trend.

Whether it was “Idols” or “Beyond,” Yungblud commanded a frenzied crowd like an old school rock star, plus proved he could run right alongside any of them during “My Only Angel,” originally recorded as a collaboration with Aerosmith, an Ozzy Osbourne-honoring cover of Black Sabbath’s “Changes” and the solo standout “Zombie.”

Not For Radio, the solo project of María Zardoya from indie pop band The Marías, took an extremely intimate lyrical tone across “Bloom” and “Melt” material, manifested in dark yet celestial vocals, lo-fi bedroom beats and a dreamy “Summer In The Forest” atmosphere.

Artist/actress/model Suki Waterhouse signaled a fresh season of newfound motherhood by releasing the “Loveland” long-player, enchanting onlookers via many of those moody, indie pop/shoegaze sensibilities, plus previous pleasantries.

Even from a technical perspective, Lollapalooza continues to live up to its history-making status as the first American festival to use a hybrid battery system to power all aspects of the main stage, including sound, lights, video and production.

As a result, the run time of its biodiesel generators is drastically reduced, which leads to significant fuel and emissions savings, all while making sure there’s enough actual energy to propel the musical action as it transitions towards the jam-packed weekend.

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Lollapalooza continues at Grant Park through Sunday, August 3. For additional details, visit Lollapalooza.com.