KnowKnow, HigherBrothers. According to QQ Music query, the original singer of the song "rnballnight" is KnowKnow and HigherBrothers. KnowKnow's real name: Ding Zhen, a male rap singer. Ding Zhen, Yang Junyi, Ma Siwei, Xie Yujie and other four people formed the Higher Brothers rap group. The group signed a contract with Control Music Group in 2017.