The Carnivores Tour was a co-headlining concert tour by American rock bands Linkin Park and Thirty Seconds to Mars. It was launched in support of Linkin Park's sixth studio album The Hunting Party (2014) and Thirty Seconds to Mars' fourth studio album Love, Lust, Faith and Dreams (2013). The joint tour was officially announced in March 2014 at a press conference, with the full itinerary being revealed. It began on August 8, 2014 in West Palm Beach, Florida and ended on September 19 in Concord, California, visiting arenas and stadiums throughout North America. It was promoted by Live Nation and sponsored in-part by Infinity. American rock band AFI served as the opening act for the tour.

"Kings and Queens" is a song by American rock band Thirty Seconds to Mars, featured on their third studio album This Is War (2009). Written by lead vocalist Jared Leto across the United States and South Africa, the track was produced by Flood, Steve Lillywhite and Thirty Seconds to Mars. According to Leto, the lyrics of "Kings and Queens" explore the triumphant feeling of human possibilities. The melody of the song contains several qualities similar to that of 1980s adult contemporary musical works and is imbued with elements of progressive rock. The song was released as the lead single from This Is War on October 13, 2009.