Beyonce's Baby Blue Ivy!

NEW YORK (Top40 Charts) Singer Beyonce Knowles and husband Jay-Z have received the best wishes of pop royalty after the birth of their first child. Beyonce and Jay-Z welcomed a daughter Saturday night in New York, the little one's arrival coming via scheduled C-section.

One of B's besties, Gwyneth Paltrow, wrote, "Welcome to the world Blue! We love you already."

Rihanna gave baby Blue a warm welcome, tweeting: "Welcome to the world princess Carter! Love Aunty Rih."
Hey, we're happy to find out this much, considering Blue's parents didn't even confirm to the world that they were married until...Wait? Did they ever really confirm it? (Public records ultimately told the tale.)
Anyway, the "Crazy in Love" duo tied the knot in April 2008 after roughly six years of dating. Considering they waited another three years to have a baby, you can tell this is one couple that thinks things through!

Beyonce memorably revealed that she was pregnant onstage at the MTV Video Music Awards in August. And her hubby certainly seems to be in the right head space, telling E! News in November that he hoped to be the kind of father whose children could talk to him about anything.
"Your child could come to you and have any type of conversation. I always hope for that kind of open relationship," he said. Just imagine the rap sessions father and daughter will be having a few years from now!

"Congrats to jay and B! God Bless :) !" Diddy tweeted. "And many more!"

Young Jeezy also shared his love for the twosome. "Congratulations to Jay-Z & Beyonce on baby Ivy Blue being born."

Congratulations Bey and Jay!