In entertainment, a virtual band (also called a virtual idol, virtual singer, virtual group, cartoon group, cartoon idol, cartoon singer or cartoon band) is a band or music group whose members are not depicted as corporeal musicians, but animated characters or virtual avatars. The music is recorded (and, in the case of concerts, performed) by real 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 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. The term virtual band was popularized with Gorillaz in 2000. However, the concept of the virtual band was first demonstrated by Alvin and the Chipmunks in 1958, when their creator, Ross Bagdasarian, accelerated recordings of his own voice to achieve the "chipmunk voice". There have since been numerous virtual bands that have recorded material. Computer animation, traditional animation, and vocal mixing and manipulation are common features. The term virtual idol originates from Japan, where it dates back to the 1980s and has roots in anime and Japanese idol culture. Popular virtual idols include the Vocaloid singer Hatsune Miku and the virtual YouTuber Kizuna AI. The term is sometimes confused for music groups who collaborate using the Internet, who do not require members to be in the same physical place for their work. Members The members of virtual groups are depicted as animated characters, with their own personality, voice, history, and playing style. For example, Alvin, the leader of the Chipmunks, is mischievous, and Skeleton Staff's Guitarist Stanton is a party-going underachiever. Furthermore, Freen in Green's bassist Sparky is sluggish, while Murdoc of Gorillaz is a middle-aged satanic bass player. Another example is Hatsune Miku who does not have a definite personality; her personality changes in each song based on interactions from the users of Vocaloid. The style of animation used for depicting the characters varies. Some groups, like The Archies, Gorillaz, Dethklok, The Banana Splits, Prozzäk, One-T, Dvar and Alvin and the Chipmunks are hand-drawn characters, and much of their media uses traditional animation and cartooning techniques. Others, such as Hatsune Miku, Crazy Frog, Genki Rockets, Gummibär, Pinocchio, The Bots, Studio Killers, and more recently, Beatcats, K/DA, and Hololive are computer-generated. Some