Psychobilly mixes elements of punk rock, rockabilly, and other genres. It is often characterized by lyrical references to horror and exploitation films, violence, lurid sexuality and other topics generally considered taboo; although often presented in a comedic or tongue-in-cheek fashion. It is often played with an upright double bass instead of the electric bass more common in modern rock music. Examples of psychobilly bands include Demented Are Go, Guana Batz and The Meteors.