Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A watan Yunin 1998, Byrne ya halarci gwajin sabbin boyband na Irish, inda manajan Boyzone Louis Walsh ya tunkare shi don shiga sabon kamfani, Westlife. Byrne ya shiga Westlife tare da Kian Egan, Mark Feehily, Shane Filan da kuma Brian McFadden. Byrne ya bayyana a cikin Westlife: Labarinmu cewa yana so ya canza sunan ƙungiyar zuwa West High; amma sauran sun fi son Westlife. Tare da Westlife, Byrne yana da 25 saman goma UK singles, 14 daga cikinsu, sun kasance lamba daya, 7 lambar daya albums kuma ya sayar da fiye da 55 miliyan records a dukan duniya. An tabbatar da cewa Westlife sun sayar da miliyan 20.2 rikodin da bidiyo a Birtaniya a cikin shekaru 14 da suka yi aiki <unk> 6.8 miliyan guda, 11.9 miliyan albums da 1.5 miliyan bidiyo. Byrne kuma yana da lambar ɗaya a Ireland a shekara ta 2002, tare da Jamhuriyar Ireland tawagar kwallon kafa ta ƙasa da Dustin na Turkiyya tare da taken Irish 2002 FIFA World Cup, "Here Come The Good Times (Ireland)". Ya kuma rubuta yawancin waƙoƙin Westlife.  Tambaya: Da wa Byrne ya shiga Westlife?
Kian Egan, Mark Feehily, Shane Filan da kuma Brian McFadden