Stars react to the birth of Meghan Markle and Prince Harry's first royal baby

Meghan Markle officially welcomed her first child --a baby boy -- with Prince Harry at 5:26 am time on Monday morning.

Well wishes and congratulations came flooding in on Instagram from politicians and celebrities including Michelle Obama, Ryan Seacrest and Ellen DeGeneres.

"Barack and I are so thrilled for both of you and can't wait to meet him," the former First Lady wrote, while Markle's former "Suits" co-star, Patrick J Adams, said "Just heard that the world just got heavier by 7 pounds and 3 ounces. Much love to him and his incredible parents."

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Stars react to the Royal Baby of Sussex
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Stars react to the Royal Baby of Sussex
Congratulations, Meghan and Harry! Barack and I are so thrilled for both of you and can't wait to meet him.… https://t.co/T42NsRIAMy
It’s a boy! Congrats to Meghan Markle and Prince Harry. The royal baby is 7th in line to the British throne...and t… https://t.co/U2uuYeY86y
The #royalbaby is here! Congratulations, Meghan Markle and Prince Harry. The baby is 7th in line for the throne, wh… https://t.co/DuiBMZzFeF
Congratulations to the Duke and Duchess of Sussex on the birth of your baby boy. So happy for the both of you.
Trying, but currently failing, to muster up a semblance of enthusiasm for this royal baby story before tomorrow's… https://t.co/R3NuLnHxXh
It’s a boy !!💙💙 Born May 6 a Taurus baby. congratulations to this amazing couple The Duke and Duchess of Sussex. 💙💙… https://t.co/CFPPMube3D
Meghan Markle had a baby...count down to when people start posting photos of themselves in London
Just heard that the world just got heavier by 7 pounds and 3 ounces. Much love to him and his incredible parents. L… https://t.co/zxFltBZOff
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Liam Payne took to Twitter to congratulate the couple, writing: "Congratulations to the Duke and Duchess of Sussex on the birth of your baby boy. So happy for the both of you."

Ellen DeGeneres also expressed her delight online, writing: "The royal baby is here! Congratulations, Meghan Markle and Prince Harry.

Jeremy Corbyn and Theresa May also send their well-wishes.

Members of the royal family were among the first to congratulate the couple.

Meanwhile, the Duke of York posted a message on Instagram, writing: "Congratulations to the Duke and Duchess of Sussex on the safe delivery of your baby boy!"

The couple announced the birth of their son Monday morning, writing: "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. 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."

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Harry and Meghan's baby arrives
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Harry and Meghan's baby arrives
The Duke and Duchess of Sussex walk away with their baby son, who was born on Monday morning, following a photocall in St George's Hall at Windsor Castle in Berkshire.
LONDON, UNITED KINGDOM - JUNE 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex travel down The Mall in a horse drawn carriage during Trooping The Colour, the Queen's annual birthday parade, on June 8, 2019 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, although the Queen's actual birthday is on April 21st. (Photo by Max Mumby/Indigo/Getty Images)
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LONDON, UNITED KINGDOM - JUNE 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Meghan, Duchess of Sussex (ring detail) travels down The Mall in a horse drawn carriage during Trooping The Colour, the Queen's annual birthday parade, on June 8, 2019 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, although the Queen's actual birthday is on April 21st. (Photo by Max Mumby/Indigo/Getty Images)
The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
The birth certificate of Archie Harrison Mountbatten-Windsor, son of the Duke and Duchess of Sussex, who was born at the Portland Hospital in London.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
The Duke and Duchess of Cambridge talk to members of the media about their newborn nephew as they arrive to launch the King's Cup Regatta trophy at the Cutty Sark, London.
Britain's Prince William, Duke of Cambridge (L) and Britain's Catherine, Duchess of Cambridge wave to wellwishers as they leave after attending the launch of the King's Cup Regatta, at the Cutty Sark in Greenwich, south east London on May 7, 2019. - The event is set to take place on August 9, 2019, on the Isle of Wight, and is set to see The Duke and Duchess go head to head as skippers of individual sailing boats, in an eight boat regatta race. Each boat taking part will represent one of eight charities and the winning team will be awarded the historic trophy The King's Cup. (Photo by Ben STANSALL / various sources / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Crowds watch the changing of the guard at Windsor Castle in Berkshire, following the announcement of the birth of a baby boy to the Duke and Duchess of Sussex. (Photo by Jonathan Brady/PA Images via Getty Images)
Super fan Terry Hutt, 84 (centre), is presented with a birthday cake by members of the media for a tv stunt in Windsor, Berkshire, following the announcement of the birth of a baby boy to the Duke and Duchess of Sussex.
WINDSOR, ENGLAND - MAY 07: Political artist and painter Kaya Mar outside Windsor Castle on May 7, 2019 in Windsor, United Kingdom. Meghan, Duchess of Sussex gave birth to a baby boy yesterday weighing 7lbs 3oz at 05:26 BST. (Photo by John Phillips/Getty Images)
WINDSOR, ENGLAND - MAY 07: A well-wisher outside Windsor Castle on May 7, 2019 in Windsor, United Kingdom. Meghan, Duchess of Sussex gave birth to a baby boy yesterday weighing 7lbs 3oz at 05:26 BST. (Photo by John Phillips/Getty Images)
Royal fans celebrate outside Windsor Castle in Berkshire after Buckingham Palace announced the news of the birth of a baby boy born to Prince Harry and Meghan Duchess of Sussex, Monday May 6, 2019. It is the first child for Harry and Meghan, who married a year ago. (Dominic Lipinski/PA via AP)
Changing of the guard at Windsor Castle in Berkshire, following the announcement of the birth of a baby boy to the Duke and Duchess of Sussex.
A man dressed in a costume makes an announcement outside Windsor Castle that Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
A man dressed in a costume makes an announcement outside Windsor Castle that Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
Britain's Prince Harry smiles as he speaks to the media after Meghan, Duchess of Sussex, gave birth to a baby boy, at Windsor Castle, Berkshire county, Britain May 6, 2019. Steve Parsons/Pool via REUTERS
Britain's Prince Harry walks up to the awaiting media after Meghan, Duchess of Sussex, gave birth to a baby boy, at Windsor Castle, Berkshire county, Britain May 6, 2019. Steve Parsons/Pool via REUTERS
People celebrate outside Windsor Castle after Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People gather outside Windsor Castle after Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People gather outside Windsor Castle after Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People celebrate outside Windsor Castle after Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People celebrate outside Windsor Castle after Britain's Meghan, the Duchess of Sussex gave birth to a boy, in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People celebrate the birth of the baby of Britain's Meghan, the Duchess of Sussex at Windsor Castle in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
People celebrate the birth of the baby of Britain's Meghan, the Duchess of Sussex at Windsor Castle in Windsor, Britain May 6, 2019. REUTERS/Hannah McKay
Well wishers gather outside the gates of Buckingham Palace in London, Monday May 6, 2019, after Prince Harry announced that his wife Meghan, Duchess of Sussex, has given birth to a boy. (AP Photo/Vudi Xhymshiti)
The Duke of Sussex public house in Waterloo, London on the day the Duke and Duchess of Sussex had a baby boy.
Footmen Stephen Kelly and Sarah Thompson bring out the easel in the forecourt of Buckingham Palace to formally announce the birth of a baby boy to Britain's Prince Harry and Meghan, the Duchess of Sussex, in London, Monday, May 6, 2019. (Yui Mok/Pool Photo via AP)
Footmen Stephen Kelly and Sarah Thompson bring out the easel in the forecourt of Buckingham Palace in London to formally announce the birth of a baby boy to the Duke and Duchess of Sussex.
A notice placed on an easel in the forecourt of Buckingham Palace in London to formally announce the birth of a baby boy to the Duke and Duchess of Sussex.
People gather outside Buckingham Palace to take pictures on their mobile phones of the notice placed on an easel in the palace's forecourt in London to formally announce the birth of a baby boy to the Duke and Duchess of Sussex.
People gather outside Buckingham Palace to take pictures on their mobile phones of the notice placed on an easel in the palace's forecourt in London to formally announce the birth of a baby boy to the Duke and Duchess of Sussex.
The BT Tower in London displays a message in celebration of the birth of the Duke and Duchess of Sussex's new baby boy.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
EMBARGOED to 1240 WEDNESDAY MAY 08 2019. The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
The Duke and Duchess of Sussex with their baby son, who was born on Monday morning, during a photocall in St George's Hall at Windsor Castle in Berkshire.
File photo dated 08/05/19 of the Duke and Duchess of Sussex with their baby son Archie Harrison Mountbatten-Windsor. It was confirmed that the Duchess gave birth to Archie at the private Portland Hospital in Westminster, according to her son's birth certificate.
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