Worrisome8,681,493 Views SingerKagamine Len Append (Power)VocaloidProducerDasuProducerViews BreakdownYouTube8.7M ViewsDaily Views1.4K11/011.4K11/021.4K11/031.4K11/041.4K11/051.5K11/061.5K11/07VideorefreshRefresh Song DataListenYouTubeVocaDB