New Mom Brigitte Nielsen Turns 55 and Couldn’t Be Happier: It’s a ‘Best Time in My Life’

Life is fanciful during 55 for Brigitte Nielsen.

The Danish-Italian singer celebrates her birthday on Sunday, reduction than a month after welcoming her fifth child (and initial daughter!), Frida.

“Celebrating my birthday has never been some-more exciting,” she exclusively tells PEOPLE of a special occasion. “It’s a best time in my life, with my darling small Frida, my smashing father and 4 pleasing grown-up sons.”

She adds, “Life is amazing, we usually get one, so take good caring of it, and live it to a fullest.”

Nielsen and her husband, Italian indication Mattia Dessi, formerly gave PEOPLE an exclusive look during a small raven-haired beauty, who arrived safely in a Los Angeles hospital on Jun 22, weighing 5 lbs., 9 oz, and measuring 19 inches long.

“We are vivacious to acquire a pleasing daughter into a lives,” she told PEOPLE. “It’s been a prolonged road, and so value it. We’ve never been some-more in love.”

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Nielsen done headlines when she revealed on Instagram on May 30 that — during age 54 — she was pregnant with her fifth child. The star of Red Sonja and Beverly Hills Cop II — who has been married 5 times — formerly had all boys: Raoul Meyer Jr., 23, Douglas Meyer, 25, Killian Gastineau, 28, and Julian Winding, 34.

Nielsen, who was married to actor Sylvester Stallone from 1985-87, marry Dessi in Jul 2006. Daughter Frida is their initial child together.

Last week, Nielsen distinguished a couple’s matrimony anniversary with a stupid shot of a twin eating ice cream.

“12yr matrimony currently and we still have lovefun with only being together❤#love #together,” she said.

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The star formerly non-stop adult about wanting to have some-more kids in Aug 2008.

“The children have kept me going. After we do Playboy, we wish to try IVF. It’s seeking a lot, though if it’s possible, it would make a package complete,” Nielsen told Hello! magazine.