Members of the Royal Family are not the only ones rejoicing upon hearing the good news about Kate Middleton's pregnancy.
After the official announcement of Kate's pregnancy on Monday, the entire world also appears to be excited in welcoming the little bundle of joy. Even famous celebrities quickly send their message of congratulations to the Royal couple.
President Barack Obama and First Lady Michelle Obama were among the first ones who congratulated the soon-to-be Royal parents.
"We extend our congratulations to the Duke and Duchess of Cambridge on the welcome news out of London that they are having their first child," President Obama and the First Lady declared in a released statement.
Celebrities took to the social networking site "Twitter" their messages for the Duke and Duchess of Cambridge. Cheryl Cole was one of the numerous celebrities who shared excitement with Kate's pregnancy news.
"I'm sooooooo excited that we're having a royal baby!!!! Congratulations to Kate and Wills !!!!!!" Cole posted on her @CherylCole Twitter account.
The Kardashian sisters, Kim and Khloe, were also glad with Prince William and Kate Middleton's baby joy.
"Congratulations to the Duke and Duchess of Cambridge!! A royal baby!!! :) awwww so sweet," Khloe wrote on her @KhloeKardashian Twitter account.
Kim Kardashian simply posted this message on @KimKardashian: "Aww so cute! Congrats!"
"I hope Royal Baby and Blue Ivy Carter become best friends," actress Brooklyn Decker wrote.
Ivanka Trump also celebrated with the Royal baby news.
"A royal baby is on the way for #KateMiddleton and Prince William! lovely! #royalbaby," Trump posted.
"Congrats to Kate & Will on expecting your first child. The happiest day of your life to look forward to," Virgin mogul Richard Branson commented on his Twitter account while American Idol host Ryan Seacrest simply wrote: "Will and Kate +1."
British politicians were also not that far behind sending their well-wishing messages with David Cameron and opposition leader Ed Miliband posted on Twitter showing their support for Prince William and Kate Middleton.
"I'm delighted by the news that the Duke and Duchess of Cambridge are expecting a baby. They will make wonderful parents," the Prime Minister said while his Labor party counterpart talked about the bonding power of the pregnancy news:
"Fantastic news for Kate, William and the country. A royal baby is something the whole nation will celebrate."
British journalist and television host Piers Morgan posted: "Congratulations to every magazine editor for calling Kate Middleton's pregnancy especially those who did covers on it 11 months ago."