Beyonce and Jay-Z's first child together. Born on January
7th 2012. Supposedly, she was named "Blue" because Jay-Z loves the color blue. He has albums "Blueprint 1, 2 & 3" and rumor has it he once dated R&B singer Blu Cantrell.
The name "Ivy"references the Roman numeral "IV"
representing the number four, which is apparently
significant to both Beyonce and Jay-Z. Beyonce's birthday is Sept. 4, Jay-Z's is Dec. 4, the couple was married on April 4, 2008 and the Beyonce's latest album is entitled "4."
There are also some more bizarre theories surrounding the name. There's the crazy theory that Blue Ivy is an anagram for the name "Eulb Yvi," which some have claimed is Latin for "Lucifer's daughter" or that Blue stands for "Born Living Under Evil" and "Ivy" stands for "Illuminati's Very Youngest." All of these theories of course stem back to equally rumors that Jay-Z and Beyonce are members of a secret cult called
the Illuminati. But those are just "rumors".