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2018年1月推出的《Bad Boy》獲得下載白金認證 김도헌，音譯 임현수，音譯 參考資料 Red Velvet Stuns as Elegant but Gothic “Psycho”. Seoul Beats. [2019-12-27]. 原始内容存档于2023-12-06. Red Velvet擕新歌《Psycho》回歸
（原始内容存档于2024-11-30）. Gerard Norton, VC: Infantryman whose lone attacks captured German Gothic Line strongpoints in Italy in August 1944. The Times. 2 November 2004 [14