A girl by the name of Blue Ivy Carter was gifted to Beyonce and Jay-Z Shawn Carter. She was introduced to the fourth floor of New York's Lennox Hill Hospital on Friday (the couple "rented the entire floor for $1million" by all accounts).
Tributes have since been been flooding in. Below are just a few.
Rihanna tweeted: "Welcome to the world princess Carter! Love Aunty Rih."
Russell Simons: "Congrats to my good friends Beyonce and Jay-Z."
Gwynnie Paltrow: "Welcome to the world Blue! We love you already."
Even Cheryl Cole threw her oar in with "Congratulations to Beyonce and Jay on the birth of their first child.. Welcome to the world Blue Ivy !.."