Worrisome9,122,511 Views SingerKagamine Len Append (Power)VocaloidProducerDasuProducerViews BreakdownYouTube9.1M ViewsDaily Views3.4K3/293.5K3/303.2K3/313.1K4/012.9K4/022.7K4/033K4/04VideorefreshRefresh Song DataListenYouTubeVocaDB