Prince Harry and Duchess Meghan's little baby boy is just hours old, but already the royal who is seventh in line to the throne has been welcomed into the world with open arms, and by some very A-List fans.
Baby Sussex might not have a name, yet he is already being celebrated by some of his Mum and Dad's famous friends.
The couple welcomed their first child overnight and have been flooded with messages of support and congratulations from the public.
But Harry and Meghan, who count celebs including Amal and George Clooney, Serena Williams and Jessica Mulroney as besties, have received some particularly notable well-wishes from some of the biggest names in the world.
Two of Meghan's former Suits stars, Sarah Rafferty, who plays the amazing redhead Donna, as well as her onscreen love interest Patrick J Adams, tweeted well-wishes to the couple.
The official Twitter account of Suits also tweeted out a message of support, saying the whole cast and crew wished Baby Sussex and his parents all the best.
Former US First Lady Michelle Obama sent Harry and Meghan a congratulatory tweet on behalf of herself and husband Barack Obama, as did talk show host Ellen Degeneres, as well as British Prime Minister Theresa May and the Leader of the Opposition, Jeremy Corbyn.
Both Sarah Rafferty and Patrick J Adams were guests at the couple's fabulous royal wedding at Windsor Castle in May last year.
They showed up looking absolutely flawless and totally nailed the royal-chic dresscode.
As any first-time parent will know, the birth of your firstborn is such an overwhelming and exciting experience.
And despite his high profile status, Prince Harry looked just like any other Dad when he announced the news to the world's press.
"It's been the most amazing experience I could ever have possibly imagined," Harry said.
In a beautifully candid moment, Harry at one point seemed completely overcome with emotion as he said with a laugh: "How any women does... what they do is beyond comprehendible."
"We're both absolutely thrilled and so grateful for all the love and support from everybody out there, it's been amazing so we just wanted to share this with everybody."
WATCH BELOW: The adorable moment an excited Prince Harry announces his new son has been born. Story continues after video.
Speaking of his wife Meghan, Harry added: "I'm incredibly proud of my wife."
He also spoke about his feelings towards the newborn baby, adding: "Every father and parent will say your baby is absolutely amazing but this little thing is absolutely to die for. I'm over the moon."