Dannii Minogue, the X Factor judge, has announced on Twitter that she is pregnant with her first baby.
"Woo hoo I'm gonna be a mummy!" she wrote on her Twitter page.
The 38-year-old is three months pregnant by her boyfriend, Kris Smith, 31, a former rugby league player.
He followed Minogue's message with his own Twitter posting: "Woo hoo I'm gonna be a Daddy."
A spokesman for the X Factor star confirmed: "Dannii and Kris are very excited and can't wait to start their family in 2010." The baby is due in July.
Minogue's pop star sister, Kylie, also responded to the news on Twitter, saying: "OMG OMG OMG Perfect!!!! So happy!!! A new Minogue!"
Rumours about the pregnancy began last week when the couple were spotted emerging from a hospital in Melbourne. However, Minogue did not confirm the news as she was yet to have a 12-week scan.
"Dannii had her 12-week scan this week and was given the results today with the all-clear to make an announcement," the spokesman explained.
There was no official word on whether Minogue would quit The X Factor but she is unlikely to return for the next series as the television talent show traditionally begins in August.
In a recent interview, Minogue spoke of her baby plans and said Smith was keen to start a family. "He tells me every day how much he wants a baby. I thought it was the girls who nagged the guys about that sort of thing," she said.
The couple met in 2008 during a holiday in Ibiza. Smith is a former Leeds Rhinos player who has forged a second career as a model. She said: "I know he's The One. That's all I can say - he is The One. I adore my boyfriend."
She also hinted that a marriage proposal would be welcome. "I guess we've talked about marriage but we're trying to take things slowly. I think it's a guy's thing to propose, although I haven't really thought about the details."