Charli XCX And Troye Sivan Go Back To ‘1999’ On Nostalgia-Trip New Song Charli XCX And Troye Sivan Go Back To ‘1999’ On Nostalgia-Trip New Song October 5, 2018 dzadmin Comments 0 Comment Charli XCX and Troye Sivan link up for an effervescent nostalgia trip on “1999.” Original Link on MTV