Celebrities from Michelle Obama to Ellen DeGeneres react to the royal baby on Twitter

Here's everything you need to know...

Prince Harry and Meghan Markle are officially parents, as the royal couple excitedly announce the news that Baby Sussex has arrived.

‘We are pleased to announce that Their Royal Highnesses The Duke and Duchess of Sussex welcomed their firstborn child in the early morning on May 6th, 2019. Their Royal Highnesses’ son weighs 7lbs. 3oz,’ read a statement from the couple via their Sussex Royal Instagram page.

‘The Duchess and baby are both healthy and well, and the couple thank members of the public for their shared excitement and support during this very special time in their lives. More details will be shared in the forthcoming days.’

Prince Harry’s reaction has spread across the internet with the 34-year-old telling the media that he was ‘incredibly proud of [his] wife’.

‘As every father and parent would say, your baby is absolutely amazing,’ he went on to explain before saying, ‘this little thing is absolutely to die for – I am over the moon.’

But how has the rest of the world reacted to the royal baby?

Here’s how public figures have been reacting to the arrival of Baby Sussex:

The Queen and the Duke and Duchess of Cambridge:

‘The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, The Duke and Duchess of Cambridge, Lady Jane Fellowes, Lady Sarah McCorquodale and Earl Spencer have been informed and are delighted with the news,' a statement announced via The Royal Family twitter.

Doria Ragland:

‘The Duchess’s mother, Doria Ragland, who is overjoyed by the arrival of her first grandchild, is with Their Royal Highnesses at Frogmore Cottage,' The Royal Family twitter also announced.

Michelle Obama:

‘Congratulations, Meghan and Harry! Barack and I are so thrilled for both of you and can't wait to meet him. #RoyalBaby’

Ellen DeGeneres:

'The #royalbaby is here! Congratulations, Meghan Markle and Prince Harry. The baby is 7th in line for the throne, which is crazy, because right now I’m 7th in line for the key-making kiosk at my grocery store.'

Sadiq Khan:

'Congratulations to the Duke and Duchess of Sussex on the birth of their baby boy. Wishing them joy and happiness at this wonderful time.'

Jeremy Corbyn:

'Congratulations to Meghan and Harry on the birth of their baby. I hope they're all doing well.'

Theresa May:

'Congratulations to the Duke and Duchess of Sussex on the arrival of their baby boy. Wishing you all the best at this happy time.'

Archbishop of Canterbury:

‘Congratulations to the Duke and Duchess of Sussex on the birth of their baby boy. May God bless the new family with love, health and happiness. #RoyalBaby'

Billie Jean King:

'Congratulations to Prince Harry and Duchess Meghan on the birthday of their son. What a lucky baby to grow up with such loving, inclusive, and progressive parents. Enjoy your new life together as a family of 3. #RoyalBaby'

We will continue to update this story.

Congratulations again to the Duke and Duchess of Sussex!