Watch Troye Sivan Perform 'My My My!' With Taylor Swift At the Reputation Tour

This is a duet we were not expecting. This weekend during the Pasadena stop on Taylor Swift's Reputation Stadium Tour, the queen of serpents brought out none other than OUT coverboy Troye Sivan for a special duet rendition of "My My My!" Wearing one of Swift's concert shirts and swinging his hips like his life depended on it, Sivan got up close and personal with the good-girl-gone-bad, who was decked out in a sequined bodysuit.

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Watch Sivan and Swift's "My My My!" duet below.