The track is a masterclass in mid-2010s EDM, characterized by a "build-and-release" structure that balances emotional vulnerability with festival-scale energy:
Goulding provides her signature airy, ethereal falsetto, which starts softly against plucking synths before escalating into a powerful, confident delivery during the explosive chorus. Calvin Harris – Outside ft. Ellie Goulding
The song builds tension through a clapping build-up, eventually breaking into a massive, dance-floor-ready drop that earned it a permanent spot in festival sets. Lyrical Themes & Narrative The track is a masterclass in mid-2010s EDM,
While the production is euphoric, the lyrics are starkly melancholic, exploring the decay and isolation of a dying relationship: eventually breaking into a massive
It features Harris’s hallmark "string effect" synths—abrasive, swirling, and grandiose—layered over pounding bass and doubled-up drums.