Nick and Vanessa Lachey welcome their baby boy
Vanessa and Nick Lachey have welcomed a baby boy. The celebrity couple - who already have a four-year-old son called Camden and a daughter Brooklyn, 20 months have announced that their third child was born on Christmas Eve . Vanessa, 36, wrote on Instagram: "It's a very Merry Christmas indeed! We had our Christmas Miracle. Phoenix Robert Lachey decided to show up early and was born on Christmas Eve. Mommy, Daddy, Camden & Brooklyn LOVE You very much! #LacheyPartyOf5 (sic)." Both Vanessa and Nick, 43, have previously spoken about the joys and the responsibility of being parents. Vanessa explained back in May 2015: "When I introduced Camden to Brooklyn, I had my doctor give me some tips. "I had Camden give a gift to Brooklyn - we laid out three stuffed animals, we said, 'Which one do you want to pick for Brooklyn?' He goes, 'That one, that one!' and so he picked the little giraffe." Meanwhile, Nick admitted that although parenthood has taken some adjusting to, he has relished the challenge. He said in 2013: "It's just all-encompassing. You would do anything for your children - not that you wouldn't for your wife or someone else you love, but there's a sense of protectiveness and responsibility that comes with your child which you don't feel in any other relationship. "[Becoming a dad] has changed my life in every possible way." Last month, Vanessa shared a video on Instagram, taken earlier this year, where she told Nick the baby was a boy She wrote in the caption: "I have so much to be Thankful for this year... especially our littlest Lachey. When Daddy came home from tour this Summer and we were moving into our new house I shared the news! Now I'm sharing it with you! I am so very Thankful and Grateful for this family of mine! And Thankful for YOU! All your Love & support makes what we do FUN and worth it! Happy Thanksgiving Everyone! Love, V (sic)."