Details: Red Velvet's 5th Mini Album, 'RBB,' is a 6-track compilation that includes an English version of 'RBB' for global fans. Hit-maker and frequent collaborator Kenzie contributed to the title track (single) "RBB," abbreviation for 'Really Bad Boy.' Includes 1 photo lyrics book, 1 poster and 1 photo card (random 1 out of 10). This is the official release from SM Entertainment, distributed to the US by Alliance Entertainment. This will be counted towards Gaon and Billboard Charts.