New York DJ/producer duo, The Chainsmokers, were the musical guests on The Tonight Show Starring Jimmy Fallon last night. Alex and Drew performed  thier *No. 1 Billboard Dance single, “Roses“, with the help of featured singer Rozes. During the performance, Drew hopped out from his production setup to join Rozes sing the hook sections.

Despite the single being released in June of last year, it is now in full traction, topping the Billboard Dance Charts and peaking at No. 6 on the overall charts. Watch the flawless performance below.