"Shadow Shadow" is a dark, high-energy EDM track composed by the producer , featuring the Vocaloid v4 flower . Since its release on September 27, 2021, the song has become a viral sensation, surpassing 15 million views on YouTube and entering the "Hall of Legend". Its popularity has spawned numerous English vocal covers and MikuMikuDance (MMD) animations, further cementing its status in the Vocaloid community. The Original Work

Azari's "Shadow Shadow" is known for its fast-paced, gritty sound and themes of isolation and inner darkness. September 27, 2021 Artist: Azari (Music, Lyrics, Arrangement) Vocals: v4 flower

A widely recognized version released in August 2022, often cited for its creative lyrical adaptation.

Betrayal, "selling one's soul," and the "shadow" of one's own ego or past. Notable English Vocal Covers

The song's intricate lyrics and rhythmic flow have made it a favorite for English-speaking "Utaite" (cover artists). Some of the most prominent English versions include:

English covers using the UTAU synth have also gained traction, including versions by creators like Kimaro. MMD and 3D Visualizations

One of the most popular covers, featuring lyrics by Sayri and translation by azuma_tou.