In music, a virtual band (also called a virtual group, cartoon group, or cartoon band) is any group whose members are not corporeal musicians, but animated characters. The music is recorded (and, in the case of concerts, performed) by human musicians and producers, while any media related to the virtual band, including albums, video clips and the visual component of stage performances, feature the animated line-up; in many cases (including all four of the Gorillaz albums, Gorillaz, Demon Days, Plastic Beach, and The Fall), the virtual band members have been credited as the writers and performers of the songs. Live performances can become rather complex, requiring perfect synchronization between the visual and audio components of the show.