It's out this Friday, October 5, and follows Sivan's critically acclaimed (and universal) sophomore album Bloom, and continues a winning streak for Charli, who has become just as known for her surprising, adventurous collaborations as she is for her solo and songwriting material.
"1999" will likely be no different, and will probably unite queerlings across the world, but we don't yet have a clue what the song sounds like. We do however, have this The Matrix-themed artwork to muse over. It's so good, it's too much — also name a more iconic duo.
Photo courtesy of Charli XCX