Happy Synthesizer17,513,033 Views SingersMegurine LukaVocaloidGUMIVocaloidProducerEasyPopProducerViews BreakdownYouTube9.4M ViewsNiconico7.7M ViewsYouTube427K ViewsDaily Views3.1K11/163.8K11/173.9K11/183.3K11/193.8K11/203.5K11/213.5K11/22VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB