Peaches Geldof has become a mum for the first time after giving birth to a baby boy.

Announcing the happy news on Twitter, Peaches wrote: "yes, it's true - I'M A MUMMY!"

She later added: "My little boy is the most beautiful thing in this world. When he holds @tomfromscum's finger with his hand its the sweetest thing ever."

New father Thomas Cohen echoed his fiancée's sentiments, tweeting: "I'm a dad he is the most perfect thing ever so proud of his beautiful mum @peaches_g and overcome with joy x."

Peaches and Thomas had been dating for a year when they [uuid=75de0534-8f3f-4a81-b7fc-af3c1fa7439d]announced their engagement[/uuid] last December and just a few weeks later [uuid=54274d81-b1fb-4923-81ac-3f3f8a7cb97d]Peaches revealed that she was pregnant.[/uuid]

The proud parents have named the new arrival Astala. Explaining the reason behind their choice of name, Peaches recently told Hello! magazine: "We found Astala in a baby name book - quite an obscure one. This is going to be a very stylish baby.

"I wanted a Jewish name because my fiancé is a Jew and the name is the male version of Esther."

Geldof's publicist confirmed the happy news, telling the Daily Mail: "Peaches and Thomas are delighted to have announced the birth of their son Astala, both were overjoyed at his arrival this week."