Awwww, Kate Middleton and Prince William (aka the Duchess and Duke of Cambridge) have announced they are expecting a baby!

And we're not the only ones who are getting ever so slightly giddy about the thought of a new royal arrival - the celeb world is too.

Find out which famous types were the first to congratulate the Royal couple on Twitter...

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  • Cheryl Cole

  • Katherine Jenkins

  • Olly Murs

  • Fearne Cotton

  • Helen Flanagan

  • Rochelle Humes

  • David Walliams

  • Imogen Thomas

  • Lucy Mecklenburugh

  • Khloe Kardashian

  • Kim Kardashian

  • Phillip Schofield

  • Vernon Kay

  • Diana Vickers

  • Perez Hilton

  • Pier Morgan

  • Lord Sugar

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