Brigitte Nielsen has welcomed baby No. 5. "It's been a long road, and so worth it".
"We are overjoyed to welcome our lovely daughter into our lives", Frida's parents gushed to People. "We've never been more in love".
Killian Marcus Nielsen, 28, is her son with Mark Gastineau, while Douglas Aaron Meyer, 25, and Raoul Ayrton Meyer Jr., 23, are from her marriage to Raoul Meyer from 1993 to 2005.
Nielsen, who was also a model before she went into acting, has been married five times.
She wrote: "Family getting larger #me #family #brigittenielsen #babybump".
Nielsen announced in May that she was expecting by posting on Instagram two photos showing off her baby bump.
"The children have kept me going", she said. After I do Playboy, we want to try IVF.
Janet Jackson gave birth for first time previous year, aged 50, to son Eissa Al Mana, having cancelled her 2016 world tour to focus on preparing for the baby. Her most famous ex-husband is actor Sylvester Stallone.
The six-foot-one beauty has had several plastic surgery operations over the years, six of which took place in 2008 and she filmed them for German and Italian TV shows.