Young Girl A (少女A) is a celebrated track by the late Vocaloid producer siinamota (Powapowa-P), which gained massive posthumous popularity as an internet meme. Known for its bittersweet melody and driving beat, the song became a staple for aesthetic edits, TikTok transitions, and melancholic pixel art animations. The meme often features a specific character or a retro-style animation that captures a sense of nostalgia or 'liminal space' energy. It is widely used by creators to convey complex emotions, ranging from pure musical appreciation to existential dread, often paired with high-contrast visuals or glitch effects that sync with the song’s rhythm.