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Tropical Night is an extended play (EP) marketed as the seventh single of Japanese boy group JO1, featuring the lead track "Tiger". Consisting a total of six songs and two instrumental versions, the EP single was released into four editions on April 5, 2023. It features the group's frequent collaborators such as Jung Ho-hyun, 1by1, Nmore, and Poptime, and first collaboration EDM artist Asher Postman. The EP single also includes "We Good" and "Romance", which served as theme songs of television series Our Little Love Story [ja] and Blue Birthday, starring members Syoya Kimata and Tsurubo Shion, respectively.