Esper Esper2,604,299 Views SingerHatsune MikuVocaloidProducerNayutalieNProducerViews BreakdownYouTube2.3M ViewsNiconico257K ViewsDaily Views-2.6M4/202.6M4/212.4K4/221.7K4/232K4/241.8K4/251.8K4/26VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB