"Paris" is a song by American DJ duo The Chainsmokers. It features uncredited vocals from American singer Emily Warren, who also co-wrote "Don't Let Me Down". It was released on January 13, 2017 as the lead single from their debut album, Memories...Do Not Open, through Disruptor Records and Columbia Records. It was served to Top 40 radio on January 17, 2017 as the follow-up radio single to "Closer".

It reached the top 10 on the US Billboard Hot 100. The single became the duo's fourth number one on the Billboard Dance/Mix Show Airplay chart in its February 25, 2017 issue, and their fifth number one on the magazine's Dance/Electronic Songs chart in its March 11, 2017 issue.

In an interview with Billboard's Taylor Weatherby, Warren said about the collaboration:

The Chainsmokers happened to be in New York and I was working on some stuff at a studio nearby, and they were like, 'Can you please come? We're finishing this song. It needs a little something; we don't know what it is. Can you just come sing some background or something?' So I came in and just layered some of Drew's parts and sang those different parts that you can hear on the song. They were like, 'All right, sick, the song's done now.' It was awesome. They just put me in the booth and were like, 'Do whatever you want,' and it turned out how it did."

She was also asked about why she wasn't credited on the song, to which she replied,

"I think that their reasoning was that they wanted it to be a Chainsmokers thing and not featuring anyone. Drew did most of the singing and is doing a lot more singing now. And since it's not a proper duet, the vocal is meant to be more of an effect than an actual part. And there's other stuff I'm doing with them that I'm singing on, so I think in terms of what's coming out, they didn't want to do a lot of features.

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