Happy Days5,619,569 Views SingerMAIKAVocaloidProducerGHOSTProducerViews BreakdownYouTube5.6M ViewsDaily Views1.6K12/173.1K12/1812012/191.3K12/201.6K12/211.4K12/221.4K12/23VideorefreshRefresh Song DataListenYouTubeVocaDB