There Seems to Be a Hidden Command to Being Happy13,993,432 Views SingersYuzuki YukariVocaloidYuzuki Yukari (VOICEROID)Other Voice SynthesizerProducerUtataPProducerViews BreakdownYouTube11M ViewsNiconico2.7M ViewsYouTube557K ViewsDaily Views1.9K4/281.8K4/293.3K4/303355/011.9K5/022K5/032K5/04VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
