The Killers and Nightmare and the Cat, have which mutual nationality?
The Killers: The Killers are an American rock band formed in Las Vegas, Nevada, in 2001 by members Brandon Flowers (lead vocals, keyboards, bass) and Dave Keuning (guitar, backing vocals). Nightmare and the Cat: Nightmare and the Cat is a five-piece British-American indie rock band that formed in 2010.
American