Esper Esper2,127,920 Views SingerHatsune MikuVocaloidProducerNayutalieNProducerViews BreakdownYouTube1.9M ViewsNiconico210K ViewsDaily Views2.7K9/302.4K10/012.4K10/022.7K10/032.6K10/042.5K10/052.7K10/06VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB