After so many news that Beyonce has gave birth last month, now it is really true.

According to Eonline.com, the musician couple named their daughter, BLUE IVY CARTER.

Beyonce gave birth via Ceasarian section in Lenox Hill Hospital in New York last night.

One of the first two artists who tweeted their congratulations are Rihanna and Russell Simmons.

Rihanna tweeted, “Welcome to the world princess Carter! Love, Aunty Rih.”

While  Russell posted, “Congrats to my good friends Beyonce and Jay-Z.”

Of course Beyonce did not use her real name upon checking in, she used Ingrid Jackson according to New York Daily News.

It was also said that Beyonce rented the whole 4th floor of the Upper East Side Hospital and she might have spent $1.3 million for it.

The hospital workers was not allowed to use any mobile phones and asked to turn it in for Beyonce’s privacy.

Last December 30, Beyonce was rumored to gave birth by a name of Tiana May Carter.

But it is clearly not true and her sister Solange cleared out the tumors on her twitter.

She posted, “Shout out to my sister for being the cutest pregnant woman ever.”

This will be Jay-Z and Beyonce’s first child together.

Beyonce’s younger sister Solange already has a seven-year old son named Daniel Smith Jr.

So this will be the second grandchild for Beyonce’s parents Tina and Matthew who has been married for 31 years.