"Perfect" is a song by English-Irish boy band One Direction. Released on 16 October 2015 as the second single from their fifth studio album Made in the A.M., it debuted at number one in Ireland, and reached the top 10 in several countries, including the United Kingdom, United States, France, New Zealand and Australia. The song was written by members Harry Styles and Louis Tomlinson, along with the band's regular collaborators, Julian Bunetta and John Ryan among others.

In various interviews, the band members and co-writers describe differing aspects of the composition and overall meaning of the song. The song is in D major and has a tempo of 100 beats per minute. Long-time writer and producer for the band, Julian Bunetta described the writing process as 'difficult' due to the writing occurring whilst the members travelled from country to country during their 2015 On the Road Again Tour. Bunetta called the single "a jam" and that stated that he plays it in his car frequently.

Digital Spy's Lewis Corner praised "Perfect", describing it as a "scintillating slice of '80s pop" and also said that the song was a "delicious retort" to Taylor Swift's (ex-girlfriend of band member Harry Styles) song "Style". Former band member Zayn Malik was less complimentary about the song though. In his January 2016 cover story interview in Billboard, he said that the first single was "quite cool" but heard the second single and decided not to buy the album.

The music video was directed by Sophie Muller with additional help from actor Giovanni Ribisi and premiered on Vevo on 20 October 2015. The video, filmed in black and white, depicts how the band lives while on tour, and was filmed at the Intercontinental Hotel in Midtown Manhattan, New York City in early September 2015. The video features shots of the members as they relax in a hotel room during their 2015 tour.

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