S Club 7 have admitted their reunion has been "emotional".
The 'Reach' hitmakers - comprised of Tina Barrett, Rachel Stevens, Bradley McIntosh, Paul Cattermole, Hannah Spearritt, Jon Lee and Jo O'Meara - have reunited for a UK tour for the first time since their split in 2003, and confessed getting back together has led to some teary moments.
Jon, 33, told BANG Showbiz: "There have been emotional days. When people are tired, and there are some days when you take in the information really well and there are some days when we all forget it, and everyone's crying. Literally, it's like, we're on stage in two weeks in front of 12,000 people, we don't know what we're doing."
As well as getting emotional as a result of their exhaustion and fears about being ready to perform, they revealed looking back at old clips of themselves in the band - which are used as background clips during their live show - brought back lots of memories.
Jo said: "It's been absolutely brilliant. Yesterday in our dress runs, we hadn't seen the video wall behind us and we had a bit of a moment. I looked at Hannah and she'd gone, and then I looked at Rach, she'd gone, and I thought, sod you! Then I've gone."
But Bradley insisted they cried out of happiness, because they have such fond memories of their time in the band, during which they released four studio albums.
He added: "When we saw the video featuring old footage, you can't help but just look at yourself back in the day and think, 'Aww! We were so young and innocent.'"