Here's a first look at tonight's The Big Reunion 2014.
In the 90s and 00s, the members of 5th Story clocked up 27 top ten hits and six number ones. Now, the lads are back to tell their stories as they create a brand new group.
The members of 5th Story have gone through everything from homelessness, bulimia and bankruptcy to glamour girl trysts, rape accusations and drug and alcohol dependency. Now, they must put all that behind them as they form a brand new group and perform their solo hits together.
The Big Reunion 2014 features exclusive and explosive accounts from former pop heroes, with revelations about drugs, fisticuffs, rows, eating disorders, shattered dreams and how the music industry can leave even apparently successful stars penniless.
Each band has just two weeks of intense rehearsals before they step back onto the stage to perform once again in front of thousands of fans.
The show airs tonight at ITV2.