The band topped a bill that included Linkin Park, Deftones, Rise Against and others, the day after No Doubt delivered the event's first headlining set. The appearance marks Metallica's return to the Rock in Rio festival following performances at Rock in Rio Lisboa in 2004, 2008 and 2012, Rock in Rio Madrid in 2010, as well as in the fest's home city of Rio in 2011 and 2013.

Part of Rock in Rio's 30th anniversary, the opening weekend of Rock in Rio USA focused on rock while the May 15-16 event will feature pop acts like Bruno Mars and Ed Sheeran.