Westlife launched The 25th Anniversary World Tour to celebrate 25 years of touring, kicking off with two orchestral performances at London's Royal Albert Hall on 27–28 October 2025, accompanied by the Royal Philharmonic Orchestra. The tour spans over 30 dates across Ireland, the UK, and Europe, featuring major residencies like 13 nights at Dublin's 3Arena (starting 10 September 2026) and seven consecutive shows at Belfast's SSE Arena. A special symphony-orchestra leg titled A Gala Evening will hit East Asia in February 2026, with stops in Singapore, Kaohsiung, Macau, and Jakarta. Notably, the tour proceeds without co-lead singer Mark Feehily, who is recovering from pneumonia and sepsis, leaving Shane Filan, Nicky Byrne, and Kian Egan to carry the shows. Announced on Britain's Got Talent in May 2026, the tour is set to become their biggest yet with a planned 150 dates, surpassing their previous record-breaking Where Dreams Come True Tour (82 shows).