Hey, Did You Know?250 Views SingerSEKAI (VOICEPEAK) Other Voice SynthesizerProducerUyamichiProducerViews BreakdownNiconico231 ViewsYouTube19 ViewsDaily Views111/16011/17111/18011/19011/20011/21011/22VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
