Unlock It

A mashup of the song with Tinashe's "Superlove" went viral on TikTok in 2021, shortly after which XCX renamed the track "Unlock It (Lock It)" to fan discontent.

[3] After implying that she had recorded a mixtape with Kim Petras, Jay Park, Carly Rae Jepsen, Tove Lo, Dorian Electra, Alma, Mykki Blanco, Cupcakke, Tommy Cash, Brooke Candy, Caroline Polachek, Pabllo Vittar, MØ, and A. G. Cook,[4] she announced the mixtape on 8 December 2017 and released its lead single, "Out of My Head" featuring Tove Lo and Alma.

[9] XCX wrote her contribution about her experiences of driving in New Jersey around the time she was supporting Halsey on her Hopeless Fountain Kingdom Tour[10] and its lyrics invite the listener to fall in love.

[3] Megan Burger of Pitchfork described the track as "art-pop at its finest, just shy of parody but hyper-aware of contemporary trends", and its lyrics as "over-the-top and blissfully artificial".

[19] Musicians Production Piri & Tommy, who had previously opened for Charli XCX at a Brighton concert,[22] released a cover version of the song on 11 November 2022.

[13] Clash described the song as "reminiscent of the original [but] deliver[ing] a more laidback edge" and described Piri's vocals as "silky smooth, laced in AutoTune, [and] bathed in reverb and delay" and the track's production as "clean and polished" with lo-fi drums.