Porter Robinson announces ‘Poseidon: The Back to Back Tour’ with Zedd In an interview with MTV News, Porter Robinson announced that he and Zedd are going on tour together -- the official title is "Porter Robinson and Zedd present Poseidon: The Back to Back Tour." Related Posts: ‘The Middle’ becomes Zedd’s first song to surpass 1 billion Spotify streams 15 of the most-anticipated IDs of 2021: Axwell and Years, Porter Robinson, Alesso, and more