"Dusk Till Dawn" is a song by English singer Zayn featuring Australian singer-songwriter Sia, which was released worldwide as the lead single from his upcoming second studio album on 7 September 2017. The accompanying music video was released the same day, it features Zayn and English American actress Jemima Kirke. The song is also featured in the official trailer for the film, The Mountain Between Us. Commercially, the track topped the charts of six nations and reached the top ten in more than twenty countries, including Australia, Canada, Germany, France and the United Kingdom.

"Dusk Till Dawn" is a pop power ballad.Fact described the song as "stadium ballad" and further saying that "instead of running away from his pop roots [Zayn] seems to be relaxing and re-embracing those pop beginnings".

In speaking about the song, Zayn said, "That's where I started and that's obviously still in there. I still like pop music, but it's about putting my own spin on it, making it me."

The song is in the key of B minor with a tempo of 180 beats per minute. The meter is common time. The harmonic progression is Bm7–G–D–F♯m7/C♯–Bm7–G–D–A/C♯. The vocals span two octaves, from D₃ to D₅.

Hugh McIntyre from Forbes said the song is as "epic as it needed to be considering the two powerhouses attached." He noted that it "features powerful vocals, high notes left and right and a vocal hook that is somehow impossible to sing along to, while still being memorable." McIntyre also predicted it could be a potential Grammy Award nominee for Best Pop Duo/Group Performance.

Michael Cragg of The Guardian chose the song as "track of the week" and described it as "a towering piece of perfect pop." Elias Leight from Rolling Stone described the song as "throbbing ballad" and said that the duet "leans close to her [Sia's] trademark style", further stating that "Sia dials back her potent voice to harmonize better with Malik; she often handles the low end, while his singing flutters around in the falsetto range." MTV called it a "massive, cinematic duet" and concluded that it "starts off as a gorgeous, romantic mid-tempo and builds to a thrashing sing-along chorus that will echo around stadiums in no time."

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Wikipedia