Westlife is reuniting for the first time since its last performance in 2012.
According to the Irish Sun, the members of the band plan to reunite under label Universal Music Group.
A source close to the band has said the reunion will not include former member Brian McFadden, who left the band in 2004.
Other members like Shane Filan, Markus Feehily, Nicky Byrne and Kian Egan.
"It's signed, sealed and delivered and it's definitely happening - and it absolutely does not include Brian McFadden.