Sinitta turned up at 'X Factor' judge Louis Walsh's house with a baby bump to mock Simon Cowell.
The brunette beauty, 49, - who dated the media mogul in 1984 - made light of Simon's recent news that he is to become a father for the first time with New York socialite Lauren Silverman, when she flew out to St Tropez in the south of France to help Louis decide who will go through to the next round of the singing contest.
Wearing a fake baby bump, she joked: "Who's the Daddy?"
Sinitta - whose 2009 outfit made headlines when she turned up to Simon's mansion in Barbados wearing strategically placed giant palm leaves - managed to get everyone laughing with the stunt.
According to the Daily Star newspaper a source said: "Sinitta knows how to make an entrance and wearing a fake bump certainly got everyone's attention. Louis was in hysterics."
ITV bosses will have to clear it with Simon before they broadcast the scenes during the judges' houses episodes which are set to air in October.
The 'X Factor' boss and his newly divorced pregnant girlfriend, who already has a seven-year-old son, Adam, with her ex-husband Andrew Silverman, are reportedly thrilled that they are set to welcome a little boy in February.
A source previously said: "He is over the moon to be having a son."
Tagged in Sinitta Simon Cowell Lauren Silverman