I Wonder if You'll Say You're Sorry1,318,697 Views SingerV4 Kamui Gakupo (Unknown)VocaloidProducerKalfina-PCover ArtistViews BreakdownYouTube1.3M ViewsDaily Views889/24989/25629/26569/27859/28879/29899/30VideorefreshRefresh Song DataListenYouTubeVocaDB