Released on the 2013 album Halcyon Days, "How Long Will I Love You" stands as a defining track in Ellie Goulding's electronic pop evolution. The song features her signature ethereal vocals layered over a driving, synth-heavy production that characterizes her work during this era. It exemplifies the genre's blend of emotional vulnerability and high-energy dance rhythms, solidifying her status as a leading figure in modern electronic music. The recording captures the atmospheric depth of Goulding's discography, offering a sonic landscape that resonates with listeners seeking both melodic beauty and rhythmic intensity. As a key component of her catalog, the track remains a staple of her live performances and digital releases.