Opeth and Mastodon Co-Headline Tour at Mesa Amphitheatre

Progressive metal and rock band, Opeth, are from Stockholm, Sweden. They are guitarist and lead singer, Mikael Åkerfeldt, bassist, Martín Méndez, drummer, Martin "Axe" Axenrot, guitarist and singer, Fredrik Åkesson, and keyboardist and singer, Joakim Svalberg. Their most successful album was their ninth studio album, Watershed, which peaked at number 23 on the Billboard 200, and topped the Finnish albums chart in its first week of release. The band's 13th album, In Cauda Venenum, came out in September 2019, and was released in both Swedish and English.

Heavy Metal band, Mastodon, from Atlanta, Georgia, are bassist and singer, Troy Sanders, lead guitarist and singer, Brent Hinds, rhythm guitarist and singer, Bill Kelliher, and drummer, Brann Dailor. AllMusic, labelled the band as, "one of the preeminent metal acts of the early 21st century." Mastodon’s seventh studio album, Emperor of Sand, was their most successful to date, featuring the single, "Sultan's Curse", which earned the band their first Grammy Award. The band have also been awarded 3 Metal Hammer Golden Gods Awards, and 4 Metal Storm Awards. Their eighth studio album, Hushed and Grim, is due out in October 2021.