was concluded with the second leg of the American tour, again with DragonForce. Kamelot's focus in 2016 continued on live shows in support of Haven and brought them again to Europe, but also toured Japan and South America. In 2016, the band announced that following the end of the third Haven tour and a "couple of more [touring] dates", they would be working on their new studio album. February 2, 2017 marked the second time for Kamelot joining the metal cruise 70000 Tons of Metal. The band opened for Iron Maiden and Ghost with Exodus on July 1, 2017 at the San Manuel Amphitheater in San Bernardino. Casey Grillo did not attend the show, so Alex Landenburg from Luca Turilli's Rhapsody filled in. 2017 concluded the Haven World Tour with shows in Russia, Greece and Israel. On January 25, 2018, Kamelot announced their twelfth studio album The Shadow Theory. It was released on April 6, 2018. Lauren Hart and Jennifer Haben appear as guests on the album. The album entered the Billboard Hard Rock Charts at number 2 and peaked the Amazon Hard Rock & Metal Charts at #1. Three music videos were released for The Shadow Theory: "Phantom Divine (Shadow Empire)", "Amnesiac" and "MindFall Remedy". Kamelot announced that longtime member Casey Grillo had departed from the band on February 5, 2018 to "pursue other musical and touring opportunities" and to focus on his drumhead company. On the same day, Firewind drummer Johan Nunez was announced as the replacement drummer. After the release of the new album, the band began The Shadow Tour to promote the album, starting in North America with Delain and Battle Beast as opening acts. After only two performances, the band announced that Johan Nunez would be stepping away due to injury and that Alex Landenburg would be his live replacement. Over the summer, they performed at European festivals. They toured Europe as headliners with support from Leaves' Eyes, Visions of Atlantis, Circus Maximus and Dynazty, followed by a Japan tour with special guests Witherfall and an Australia tour with Valhalore. Kamelot joined the metal cruise 70000 Tons of Metal for the third time on January 31, 2019. They returned to Europe in the spring with special guests Evergrey and Visions of Atlantis. Alex Landenburg was later announced as the official drummer on April 10, 2019. During the summer the band performed some exclusive European concerts