Hatsune Miku
One of the Vocaloid compilations, "Exit Tunes Presents Vocalogenesis feat. Hatsune Miku", debuted at number-one on the Japanese weekly Oricon album charts dated May 31, 2010, becoming the first Vocaloid album ever to top the charts. Another album, "Supercell", by the group Supercell also features a number of songs using Vocaloids. Other albums, such as 19's Sound Factory's "First Sound Story" and Livetune's" Re:package", and "Re:Mikus" also feature Miku's voice. Other uses of Miku include the albums by Absorb and by OSTER-project. She had sung the original Nyan Cat called "Nyanyanyanyan!" by daniwell-P. Kagamine Len and Rin's songs were covered by Asami Shimoda in the album "Prism" credited to "Kagamine Rin/Len feat. Asami Shimoda". Another song original sung by Miku, "Color", was covered by Maria, and featured as the opening theme of the 2011 anime series "Freezing".
Virtual band
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 considered mischievous, and Skeleton Staff's Guitarist Stanton is a party-going underachiever, furthermore, Freen in Green's bassist Sparky is sluggish and has been described as egotistical and pretentious, while Murdoc of Gorillaz is a middle-aged satanic bass player. Another example is Hatsune Miku who does not have a definite personality; because her way of being depends on the fans, her personality changes in each song made by the users of Vocaloid.