Holly Madison names baby daughter

Holly Madison's daughter is just a few days old, but the anticipation over her arrival has been brightening her parents' world for the last nine months. So it's only fitting that she be given a moniker to reflect that.

Madison, 33, revealed Friday that she and her boyfriend, Pasquale Rotella, have decided to call their newborn baby girl Rainbow Aurora Rotella. And it turns out that the colorful name has an equally colorful history.

PHOTOS: Holly's maternity style

"I wanted to give my daughter a unique name," the former Playboy model told E! News. "Growing up, there was a girl in my school named Rainbow and I was so envious of that name. I thought it was so pretty and unique!"

As for Rainbow's middle name? It could be an homage to Disney's "Sleeping Beauty." Madison dressed up as Princess Aurora for Mickey's Halloween Party in 2012.

PHOTOS: Holly's Girls Next Door days

The "Girls Next Door" alumna welcomed her little bundle of joy at 11:59 a.m. on Tuesday. She weighed in at 7 pounds, 2 ounces.

Us Weekly first broke the news of Madison's pregnancy in August 2012. In January, she told Us that she and Electric Daisy Carnival founder Rotella, 38, were looking forward to parenthood -- but hadn't yet decided how they'd raise their little girl.

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"I don't want to be too strict, because I think kids can get rebellious," she explained. "But I want to raise my daughter to be passionate about doing good things and pursuing real things and hobbies instead of frivolous materialistic stuff."

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