Win McNamee / Getty Images / MCT
Parents: Jay-Z and Beyoncé
When Jay-Z and Beyoncé announced the birth of their baby girl, one of the most buzzed-about aspects was their child's name, "Blue Ivy." The music moguls haven't offered a direct explanation of the name choice but Bey did share a limerick on her website that potentially clarified the choice. Here's an excerpt: "Water is colorless, shallow water appears to be the color of whatever lies underneath it, but deep water is full of this scatted light, the purer the water the deeper the blue."
They added on "Ivy" because of the significance of the number 4 -- or IV. Both of them were born on the 4th of their respective birth months and the couple was married on April 4, 2008.