The award-winning Australian singer, television presenter and former Neighbours star, whose partner is former Rogue Traders bandmate Cameron McGlinchey, welcomed daughter Harper Rain Sinclair McGlinchey yesterday afternoon.
According to the Herald Sun, the baby was born at a private hospital in Melbourne weighing 3.22kg.
Her manager Mark Byrne said last night: "Natalie Bassingthwaighte is a mum. Mum and daughter are both perfect."
Bassingthwaighte admitted last year: "Starting a family is one of my biggest goals. I would love that, it would complete everything."
McGlinchey recently said: "For us, it was always about the time being right. Now the time is right. It's an opportunity to bring something good into the world."