Adam Rickitt, Gareth Gates, Dane Bowers, Kavana and Kenzie have formed the group, singing each other's songs (albeit modernised versions), especially for the ITV2 show.
We were lucky enough to get the lowdown with the guys ahead of the first episode - and here's our behind-the-scenes video of Reveal's photo shoot with them!
During our exclusive interview and photo shoot, Kavana, 36, told Reveal: "It's really starting to feel like a proper group now."
Dad-of-one Dane, 34, who is engaged to model Sophia Cahill, admits that their loved ones are just as excited as they are.
"For our friends and family to come and watch us on stage will be great, it feels like we're doing it properly this time round," he said.
"A lot of us have got kids who obviously weren't around the first time, or they were too young, so it'll be nice for them to see what's going on and to get the family together."
The Big Reunion, 9pm, ITV2, Thursday 6 February.
For the full interview and photo shoot, get the lastest issue of Reveal - out now!