No official word from the famously private spouses of three years, but fans of hip-hop icon Jay-Z have long known that blue holds a special place in his heart. "My favorite hue is Jay-Z blue," he rapped in the song "Go Crazy" with Young Jeezy. (There were even unrealized plans to feature the unique shade on a line of SUVs.)
And, indeed, Jay-Z has released three beloved Blueprint albums in 2001, 2002 and 2009.
That middle name "Ivy," meanwhile, reportedly references the Roman numeral ("IV") for 4 -- a significant digit for both Beyonce and Jay-Z: Beyonce's birthday is Sept. 4, Jay-Z's is Dec. 4, they were married on April 4, 2008, and the singer's latest album is entitled 4.