Jessica Biel has given birth to her and Justin Timberlake's first child, a baby boy called Silas Randall Timberlake. The 33-year-old actress and husband Justin Timberlake are ''ecstatic'' about their new arrival, Silas Randall Timberlake, People magazine reports. The couple had kept their exciting news a secret until Timberlake's 34th birthday earlier this year, when he tweeted alongside a photograph of him kissing his wife's belly: ''Thank you EVERYONE for the Bday wishes! This year, I'm getting the GREATEST GIFT EVER. CAN'T WAIT (sic)'' And Timberlake couldn't help but gush about the I Now Pronounce You Chuck and Larry actress recently, revealing his excitement about their ''greatest creation yet''. He said: ''You can't have innovation without creation. I want to thank my best friend, my favourite collaborator, my wife, Jessica, at home, who is watching. Honey, I can't wait to see our greatest creation yet. "Don't worry, daddy is headed home right now to innovate by learning how to change a poopy diaper and get my swaddle on.'' Meanwhile, a source previously claimed Timberlake incredibly protective of his wife on one of their last night's out together before they gave birth. ..