Lorde announced dates for the Europe and Oceania legs of her tour via Twitter on 8 June 2017. Her tweet was accompanied by the release of a new song titled "Sober" (2017) and the announcement of the opening act for her tour, Khalid. The following week, a North American leg was announced. Lorde revealed her opening acts would be Mitski, Tove Styrke, and Run the Jewels on 4 October 2017. Shortly after the 60th Annual Grammy Awards, Lorde tweeted, "If you're debating whether or not I can murder a stage ... come see it for [yourself]" after it was reported that she was the only Album of the Year nominee not to be offered a solo performance at the ceremony.