Actress Stephanie Lemelin is a new mum after giving birth to a baby boy.

The Men at Work star took to her Twitter.com page on Wednesday (06Mar13) to announce she and her husband A.J. Draven are now the proud parents of a son.

A host of her celebrity pals offered their congratulations, with The Big Bang Theory star Kaley Cuoco tweeting, "Congratulations Stephy on the new addition! Cannot wait to meet him!" while 8 Simple Rules actress Amy Davidson writes, "You're a mommy now!"

Beverley Mitchell, who is set to give birth to a baby girl next month (Apr13), adds, "Whooo hoo! Congrats Mama! Can't wait to see pics!"