Linkin Park performed at Download Festival on June 14, 2014, where they played their debut album, "Hybrid Theory", in its entirety. Linkin Park headlined Rock am Ring and Rock im Park in 2014, along with Metallica, Kings of Leon, and Iron Maiden. They also headlined with Iron Maiden again at the Greenfield Festival in July. On June 22, Linkin Park made an unscheduled headline appearance at the Vans Warped Tour, where they played with members of Issues, The Devil Wears Prada, A Day To Remember, Yellowcard, Breathe Carolina, Finch, and Machine Gun Kelly. In January 2015, the band embarked on a tour to promote the release of "The Hunting Party", consisting of 17 concerts across the United States and Canada. The tour was canceled after only three concerts when Bennington injured his ankle. On May 9, Linkin Park performed at the first edition of Rock in Rio USA, in direct support for Metallica.