Gumi is a virtual singer and character created by the Japanese company Crypton Future Media. She is part of the Vocaloid software family, which allows users to synthesize singing by typing in lyrics and melodies. Gumi's voice is based on a real singer, and she is known for her bright, cheerful tone, making her popular in various music genres. Gumi first appeared in 2009 and quickly gained a following among music producers and fans. She is often depicted with green hair and a distinctive outfit, and her character has been featured in numerous songs, videos, and even video games. Gumi's popularity has led to collaborations with various artists and a vibrant online community.