With Witness, Katy reflects on the changes in her own life and in the world around her, delivering songs that both challenge and inspire. The singles released thus far – the Platinum-certified “Chained to the Rhythm” featuring Skip Marley and the follow-up single, “Bon Appétit” featuring Migos – hint at the breadth of the musical and thematic elements found on Witness. Each ticket purchase for “Witness: The Tour” also includes a pre-order for “Witness: The Album.”