Kerry, Liz McClarnon and Natasha Hamilton will be hitting the road together in June next year as they mark the milestone anniversary.
The girls will be performing eight dates in the UK, before packing their bags and heading off to dazzle their fans in Germany, Switzerland, New Zealand, Australia, Asia and Russia. Phew!
Speaking about their exciting new venture, the band said: "We can't wait for next year's tour and we've got a fantastic album lined up as well.
"We've all grown up so much since our last Atomic Kitten tour, and so have our fans. There'll be nostalgia, lots of fun and we'll be bringing a whole new element to the shows that our fans can relate to.
"We want it to be one big celebration!"
Atomic Kitten first stormed the charts in 1999 with their debut single 'Right Now' and went on to sell a whopping 10 million records around the world.
Last year, the girls got back together for The Big Reunion and enjoyed a tour of the UK with their fellow groups of times gone by, who had also reformed for the ITV2 reality show.
Tickets for Atomic Kitten's '15: Greatest Hits Tour' go on sale at 9am on Friday (5 December) via Live Nation.
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