Released in 2013 on the album Pure Heroine, "400 Lux" stands as a defining track in Lorde's early discography. The song blends electropop production with introspective lyrics that explore themes of fame, isolation, and the fleeting nature of public adoration. Its distinctive sound, characterized by a driving beat and Lorde's emotive vocal delivery, helped establish her signature style within the global pop landscape. As a key component of the Pure Heroine era, the recording captures the tension between youthful ambition and the pressures of becoming a celebrity, resonating deeply with listeners who have experienced the duality of rising to fame.