Twenty One Pilots are an American musical duo from Columbus, Ohio. Initially a band, the group was formed in 2009 by lead vocalist Tyler Joseph along with Nick Thomas and Chris Salih, who both left in 2011. Since their departure, the line-up has consisted of Joseph and drummer Josh Dun.

Bastille are an English pop rock band formed in 2010. The group began as a solo project by lead vocalist Dan Smith, but later expanded to include keyboardist Kyle Simmons, bassist and guitarist Will Farquarson and drummer Chris “Woody” Wood.