The Chainsmokers Preview New Single 'All We Know' Feat. Phoebe Ryan: Listen

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The Chainsmokers attend the 2016 iHeartRadio Music Festival Night 2 at T-Mobile Arena on Sept. 24, 2016 in Las Vegas.

While The Chainsmoker's single "Closer" continues to hold down the No. 1 spot on Billboard's Hot 100 for the sixth week straight, Drew Taggart and Alex Pall aren't resting on their laurels. 

The Chainsmokers' 'Closer' Leads Hot 100 for Sixth Week & D.R.A.M.'s 'Broccoli' Hits Top 10

The New York natives took to Snapchat today (Sept. 26) to preview their new single "All We Know," featuring vocals from Phoebe Ryan and Taggart. 

Update: The Chainsmokers released "All We Know" today (Sept. 29). Listen in full below: