Kian Egan, Nicky Byrne, Mark Feehily and Shane Filan announced their comeback in a video posted on social media.
The Irish boy band are getting back together
Brian McFadden, who left the group in 2004, will not be reuniting with the rest of the lads.
It’s been 20 years since the band formed in 1998, and they are responsible for some of the most iconic boy band hits ever released.
Here are our top 5 Westlife hits, to get us excited for their new music: