Witness is the fifth studio album by American singer Katy Perry. Capitol Records released it on June 9, 2017. The album's lead single, "Chained to the Rhythm", featuring Skip Marley, was released on February 10, 2017. The second single, "Bon Appétit", featuring hip hop group Migos, followed on April 28, 2017. "Swish Swish", featuring Nicki Minaj, was released as the third single on May 19, 2017.