Vocaloid characters are digital singers created using Vocaloid software, which allows users to synthesize singing by inputting lyrics and melodies. Each character has a unique voice, personality, and design, often represented as anime-style avatars. Popular examples include Hatsune Miku, Kagamine Rin, and Megurine Luka. These characters are not just software; they have become cultural icons, appearing in music videos, concerts, and merchandise. Fans often create their own songs and stories featuring these characters, contributing to a vibrant community that celebrates creativity and collaboration in the Vocaloid universe.