There Seems to Be a Hidden Command to Being Happy13,615,422 Views SingersYuzuki YukariVocaloidYuzuki Yukari (VOICEROID)Other Voice SynthesizerProducerUtataPProducerViews BreakdownYouTube10M ViewsNiconico2.7M ViewsYouTube525K ViewsDaily Views2K11/012.9K11/021.8K11/032.3K11/042.5K11/052K11/061.6K11/07VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
