Holly Madison

Days after welcoming her first child, Holly Madison is revealing something big — her new baby's name!

The former Girls Next Door star tells E! News that she and beau Pasquale Rotella have named their daughter Rainbow Aurora Rotella. "I wanted to give my daughter a unique name," she said. "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!" 

Photos: Stars who don't look their age

Rainbow was born on March 5 at 11:59 a.m. and weighed in at 7 pounds and 2 ounces.

What do you think of the name?