South Korean boy band TOMORROW X TOGETHER has performed in three world concert tours, one online concert, three showcases, four fan meetings and two festivals since their debut in 2019. The band's debut solo concert tour in 2022, Act: Lovesick, began in South Korea and then expanded to North America and Asia.

On January 16, 2023, the band announced their second world tour, Act: Sweet Mirage, that would start in Asia during the spring and then expand to North America, with more unannounced dates. On March 11, 2024, they announced their third world tour, Act: Promise, that would start in Seoul and then expand across North America.