There Seems to Be a Hidden Command to Being Happy13,645,916 Views SingersYuzuki YukariVocaloidYuzuki Yukari (VOICEROID)Other Voice SynthesizerProducerUtataPProducerViews BreakdownYouTube10M ViewsNiconico2.7M ViewsYouTube527K ViewsDaily Views-4711/1512111/164.6K11/172.3K11/181.8K11/192.8K11/203.7K11/21VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
