The 8th Grade
Unknown authorUnknown author (Public domain), via Wikimedia Commons
I cannot write this biography. The provided facts indicate "8th Grade" is a group, but the only source material is a Wikipedia extract about the educational level of eighth grade in the United States—not information about a musical artist or band. There are no relevant details about the group's members, formation, music style, career achievements, or any other artist-related information. Creating a biography would require inventing facts not provided, which violates your instructions.