In March 2019, Metallica announced that its WorldWired Tour would continue into Australia and New Zealand in October with Slipknot in support. Later that month, the band announced that it would perform at the grand opening of San Francisco's new Chase Center with the San Francisco Symphony in September to celebrate the twenty-year anniversary of "S&M". The commemorative shows, titled "S&M2", were screened in over 3,000 theaters worldwide on October 9; the event featured arrangements from the original "S&M" concerts as well as new arrangements for songs recorded since then and a cover of the Alexander Mosolov piece "Iron Foundry", and were conducted by Edwin Outwater and San Francisco Symphony music director Michael Tilson Thomas. "S&M2" went on to earn $5.5 million at the box office, making it the biggest global rock event cinema release of all time; a second screening was later announced for October 30 as a result. In August 2020, the band announced that they would release the "S&M2" performances as an album, DVD and box set.