Welcome to the world Astala!

Peaches Geldof and Thomas Cohen © Hello Magazine

Peaches Geldof and fiancé Thomas Cohen have welcomed their first child, a baby boy they named Astala Dylan Willow Cohen. Peaches and Thomas, vocalist of S.C.U.M, announced the news to the world via Twitter. Peaches, 23, tweeted, "Yes, its true - I'M A MUMMY!!!!" and "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. X" Tom tweeted, "im a dad he is the most perfect thing ever so proud of his beautiful mum @peaches_g and overcome with joy x".

The couple had previously agreed on the unusual name for their son. Peaches said at the time "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."

Peaches and Thomas announced their engagement in December last year.