Red Velvet Really Bad Boy RBB Seulgi Yeri Joy Irene Wendy4K / 3840x2160Red Velvet, Really Bad Boy, RBB, Seulgi (Kang Seul-gi), Yeri (Kim Ye-rim), Joy (Park Soo-young), Irene (Bae Joo-hyun), Wendy (Son Seung-wan)S7810