Earlier this afternoon (July 22), Prince William and his wife Kate Middleton welcomed their first child into the world.

At 4.24pm BST, Middleton gave birth to a son who weighed a rather hefty 8lbs 6oz and the stars of music have been taking to their social networking accounts to congratulate the happy couple.

Singer Sinitta tweeted: "Huge Congratulations to the Duke and Duchess of Cambridge and to the united Kingdom.. #3KingsToCome #RoyalBabyBoy, Beautiful week in London."

Jack Osbourne, who became a father himself just over a year ago (April 2012) took a more comical approach to his message and wrote: "EPIC!!!! a new prince was born. its like real life Game of Thrones #royalbaby."

Beauty Dionne Bromfield added: "Awww #ItsABoy congrats William and Kate #RoyalBabyBoy xx"

Vocal trio Stooshe also joined in with the well wishes and posted a tweet that read: "Congrats to Kate & Will on their new baby boy! ahhhh #Broody lol #RoyalBabyBoy K x"

Hundreds of people crowded around Buckingham Palace this evening for a glimpse of the easel, which is located in the palace's forecourt, as it confirms the exciting news (pictured below).