The song's popularity was heavily bolstered by its two distinct music videos:

: The lyrics suggest that love—whether romantic, familial, or platonic—is a "two-way street" that requires enduring uncertainty and hope.

: Martin Garrix’s influence is felt in the bridge’s "xylophone-style" synth work. The drop features an earworm synth melody that escalates in pitch, eventually soaring up an extra octave for a final euphoric payoff.

: It opens with three aggressive, distinct piano chords that set an immediate, soaring tone. The verses are characterized by a steady pulsing beat and a recurring melodic hook.

At its core, the song explores the theme of in the pursuit of love.

Released in May 2015 as the lead single for his second studio album Stories , "" is widely considered one of Avicii’s most enduring anthems. Co-produced by Martin Garrix and featuring uncredited vocals from Simon Aldred (of Cherry Ghost), the track perfectly encapsulates Avicii's signature "folktronica" sound—blending soulful, storytelling lyrics with high-energy EDM. Musical Composition & Structure

: Critics have noted a "hypocritical" but effective structure; the verses are strong and optimistic ("And if there's love in this life, there's no obstacle"), while the chorus sounds more defeated as it counts down the days of a difficult week ("Monday left me broken / Tuesday I was through with hoping"). Lyrical Themes

The song is built on a foundation of emotional shifts, designed to take the listener on a "journey" from melancholy to jubilation.