Liberty X singer Tony Lundon almost pulled out of The Big Reunion concert when his wife gave birth to twins.
The Irish singer's wife, Kelly, went into labour on Saturday, seven weeks early and just three days before the gig at London's Hammersmith Apollo, The Sun reported.
Tony told the newspaper: "They're seven weeks premature but they're good. They're tiny so they needed a little help and are in a special care unit. We didn't really see them until Sunday morning. It was really scary.
"On Monday, they started improving and by Tuesday they were doing brilliantly. Up until then, it was a bit iffy whether I was going to perform or not."
The newspaper reported that the baby boys, Max and Rioghan, are now doing well, and Tony was able to perform with bandmates Michelle Heaton, Jessica Taylor, Kelli Young and Kevin Simm for the TV gig.
After the concert, all the bands reuniting for the ITV2 show - Liberty X, 911, 5ive, B*Witched, Atomic Kitten, Honeyz and Blue - enjoyed an after-party, the newspaper reported.