Tropical Night (EP)

Tropical Night (stylized in all caps) is an extended play (EP) marketed as the seventh single of Japanese boy band JO1. It also served as the second single for their third studio album, Equinox (2023). The EP single includes six songs and two instrumental tracks and was released by Lapone Entertainment in four editions on April 5, 2023. It features frequent collaborators such as Jung Ho-hyun, 1by1, Nmore, and Poptime, and the group's first collaboration with EDM artist Asher Postman. The EP single also includes the Japan Record Excellent Work Award winner "Trigger", as well as "We Good" and "Romance", theme songs for television series Our Little Love Story, starring Syoya Kimata, and Blue Birthday, starring Shion Tsurubo.

JO1 promoted the EP single by performing the lead track "Tiger" at the Hanshin Tigers vs. Hiroshima Toyo Carp match in Hanshin Koshien Stadium and attending international music events, such as KCON in Thailand and Dream Concert in South Korea. Tropical Night became JO1's seventh consecutive number-one single on the Oricon chart, while "Tiger" topped the Billboard Japan Hot 100 and marked the group's debut on the US Billboard Hot Trending Songs chart.