They will kick start their tour in Belfast, at the Odyssey Arena on 2nd May 2010.
Westlife formed in July 1998, and were signed by Simon Cowell, but are now managed by Louis Walsh.
Westlife are the only act in the UK to have their first seven singles go straight to No1, and have sold more than 45 million records worldwide.
Their music has grown with them, starting off with teen pop, pop and now they emphasis on grown up Ballads.
To see the Irish boys perform live get Westlife Tickets from Britevents.com.