It's a girl! Catherine, Duchess of Cambridge delivered a baby girl at 8:34 a.m. local time. The baby weighs 8 lbs. 3 oz. and according to Kensington Palace, both mom and baby are doing fine.

HNGN will keep you updated on this very special delivery...

Updated May 2, 6:30 a.m. EDT:
 Prime Minister David Cameron congratulated the royal couple on Twitter.

The princess' name has not been revealed yet.

A princess is actually more lucrative for the U.K. than a prince. Why? Click here to find out!

Updated May 2, 6:48 a.m. EDT:

Another couple just walked out of the Lindo Wing with their newborn baby boy. They stopped to have their photos taken, according to bystanders.

Updated May 2, 7:23 a.m. EDT:

Still not a peep about the princess' name, although according to the Daily Mail, Charlotte has pulled ahead of Alice as the betting man's favorite.

Anyone with "HRH" in front of his or her name technically doesn't have a last name, but Prince George and his sister will reportedly use "Cambridge" when they attend school.

Updated May 2, 4:45 p.m. EDT:

The easel was placed in front of Buckingham Palace. The easel is the usual method of royal birth announcement, but the duke and duchess opted for a more modern approach: Twitter. They also broke tradition by delivering in a hospital. Most royals are born in the palace or in the home of a family member.

The princess' name has not been revealed yet.

 If you're adding to your family, the palace would like you to share a picture to celebrate the birth today.

The royal couple unveiled their baby girl. The duchess will leave the hospital tonight.

Updated May 4, 12:57 a.m. EDT: