Meet the New Celebrity Babies of 2017

Serena Williams gave birth to her first child, a baby girl named Alexis Olympia Ohanian Jr., with fiancé Alexis Ohanian in September. Serena gave the world a first look at the tiny tot that same month, posting a photo of her and Alexis on Instagram.

Bar Refaeli and her husband, Adi Ezra, welcomed their second child, another little girl, in October. "Our hearts are full of love right now, as I am excited to announce I am a 'mom of two,'" the model said in a statement to Us Weekly. "We welcomed Liv's little sister, Elle, into the world on Friday, October 20th at 20:50pm, weighing 3 kilos. We are all happy, healthy and eager to start this new chapter in our lives."

Rosie Huntington-Whiteley and Jason Statham became parents for the first time to a baby boy in June. Rosie announced the news on Instagram, writing, "Our little man arrived! Jack Oscar Statham 8.8lbs on Saturday June 24th. 👼🏼❤️"

Steven Yeun and wife Joana Pak became parents in March when Joana gave birth to their beautiful baby boy.

Jared Padalecki and wife Genevieve welcomed a baby girl on St. Patrick's Day. Odette is the third child for the couple, who are already parents to sons Shepherd and Thomas.

Liam Payne and Cheryl officially became parents in March when Cheryl gave birth to their first child. Liam confirmed the news on Instagram with an adorable photo of him holding his baby boy, writing, "I'm incredibly happy to welcome our new baby boy into the world, it's a moment that I will never forget for the rest of my life and my favourite memory I have so far."

Whitney Port gave birth to a beautiful baby boy with husband Tim Rosenman in July. She revealed the news on Instagram, writing, "Sorry I've been MIA for like a week! I lost my phone. Just kidding!! I made a human! Sonny Sanford Rosenman was born on 7/27/17!! Everyone is so happy and healthy and we are home now. I'm going to try my very best to not be one of those moms whose feed is dominated by their baby but I can totally see how difficult it will be not to. I am beyond obsessed and in love and wish I could bottle this feeling for all of you out there. Check out the blog (link in bio) for more and welcome our little one to the world!! ❤️❤️❤️."

Peta Murgatroyd and Maksim Chmerkovskiy welcomed their first child in January. Maksim confirmed the exciting news on Twitter, writing, "Shai Aleksander Chmerkovskiy 01/04/17 5:34am."

Molly Sims welcomed her third child with husband Scott Stuber in January. "💙💙💙Welcome to the world Grey Douglas Stuber 1.10.17 Words do not express how grateful and happy we are to have another piece of magic added to our little tribe! #blessed 😇#tribeof5," the model wrote alongside a snap of herself holding her baby boy. Molly and Scott are also parents to son Brooks and daughter Scarlett.

Amber Tamblyn gave birth to her first child with husband David Cross in February.

Ryan Lochte welcomed a son with fiancée Kayla Rae Reid in June.

Brie Bella and husband Daniel Bryan welcomed their first child, a baby girl, in May.

Camilla Luddington gave birth to a beautiful little girl with her boyfriend, Matt Alan, in April. Camilla celebrated becoming a mom with a sweet clip of her and Matt holding their little girl on Instagram. "We have a new great love in our lives . . . our sweet baby girl . . . Hayden," she captioned it.

Lauren Conrad and husband William Tell welcomed their first child in July. "We are thrilled to share that we welcomed our son Liam James Tell into our family," the couple gushed to People. "Mom, Dad, and baby are doing well. We're already in love!"

In August, former The Hills star Jason Wahler and his wife, Ashley Slack, welcomed a beautiful baby girl. Ashley shared the first photo of the tiny tot on Instagram, writing, "Born on Aug 21st at 8:16am 7lb 12oz."

Felicia Day announced the arrival of her daughter in January. No other information about the little one has been released yet.

Lily Rabe and partner Hamish Linklater welcomed a baby girl in March. The tiny tot's name has yet to be revealed.

Tori Spelling gave birth to her fifth child with husband Dean McDermott in March. "We are over the moon in love with baby Beau," Tori said in a statement. "He is a true blessing, and his brothers and sisters were overjoyed to meet him! We are all truly grateful for our big beautiful and healthy family." Beau joined the couple's other children, Liam, Stella, Hattie, and Finn, as well as Dean's son Jack from his previous marriage.

Kel Mitchell welcomed a baby girl with wife Asia Lee in July. Wisdom is the first child for the couple, while Kel has two kids, son Lyric and daughter Allure, from a previous marriage.

Christian Serratos welcomed her first child with boyfriend David Boyd sometime in May. She announced the news on Instagram on Mother's Day with photo of herself cradling her newborn baby. No other details have been released yet.

Bristol Palin welcomed a daughter with husband Dakota Meyer in May. Atlee joined Bristol's daughter Sailor and son Tripp, whom she shares with ex-fiancé Levi Johnston.

In January, Geri Halliwell announced the birth of her first child with husband Christian Horner on Twitter. "Christian and I are delighted to announce our baby boy was born this morning weighing 7lbs 8oz 👶🏼👍🏻," she wrote. "Montague George Hector Horner arrived this morning, a beautiful little brother for Bluebell and Olivia #amazing-day #grateful #monty 👶🏼." Geri and Christian are also parents to daughters Bluebell Madonna Halliwell and Olivia Horner, whom they have from previous relationships.

In August, Tony Romo and his wife, Candice, welcomed their third child, a son named Jones Mccoy Romo. The former NFL quarterback announced the exciting news on Instagram, writing, "Welcomed our third boy Jones Mccoy Romo into the world today! Ten fingers and ten toes. All healthy. Scroll over to see his big brother Rivers excitement about this new baby."

Beyoncé and JAY-Z welcomed twins, a baby girl and a boy, in June. Rumi and Sir joined the couple's 5-year-old daughter, Blue Ivy.

In October, Jason Biggs and Jenny Mollen welcomed their second child, son Lazlo Biggs. The couple are already parents to 3-year-old son Sid.

Scandal actress Katie Lowes announced the birth of her first child, a baby boy named Albee, with husband Adam Shapiro in October. "Baby’s‪ ‬first #Scandal Thursday‪!" she wrote on Instagram alongside a photo of his adorable feet.‬ "@shappyshaps and‪ ‬I‪ ‬are thrilled to welcome Albee Shapiro to our family! We’re happy & healthy! #BabyGladiator"

Former *NSYNC member Chris Kirkpatrick welcomed his first child with his wife, Karly, in October. The singer shared the exciting news about their son on Instagram, writing, "So proud of @MagicKar! She is the real Wonder Woman! Welcome our new edition Nash Dylan Kirkpatrick!!!!"

Jaime Pressly welcomed twins Leo and Lenon in October with longtime boyfriend Hamzi Hijazi. The tiny tots join Jaime's son, Dezi James Calvo, whom she shares with ex Eric Calvo.

Cristiano Ronaldo and his girlfriend, Georgina Rodriguez, welcomed a baby girl in November. "Both Geo as Alana are doing well!" the soccer player wrote in Portuguese on Instagram. "We are all very happy!" Cristiano is already a dad to 7-year-old son, Cristiano Jr., from a previous relationship and twins, Eva and Mateo, whom he welcomed via surrogate in June.

The Bachelorette's Emily Maynard Johnson welcomed her fourth child in November. Her husband, Tyler Johnson, announced the exciting news on his Instagram story. The couple is already parents to sons Gibson Kyle, 11 months, and Jennings Tyler, 2, and Emily's 12-year-old daughter, Ricki, from a previous relationship.

Jimmy Kimmel and Molly McNearney welcomed their second child, son William John Kimmel, on April 21. He was born with a heart issue, and just a few days after his birth, Billy underwent his first of likely three open-heart surgeries. In October, Jimmy updated fans on his "happy and healthy" baby boy, and the little one underwent his second surgery in December.

In November, actress Julia Stiles announced on Instagram that she and husband Preston J. Cook welcomed their first child, a baby boy named Strummer Newcomb Cook, on Oct. 20.

Kevin Hart and wife Eniko Parrish welcomed their first child together, a son, in November. "God is truly amazing . . . Kenzo Kash Hart was born at 1:45 am," the comedian tweeted. "He is Healthy & already smiling. Thank you all for your prayers!!!! We love & appreciate ya #Harts." Kenzo is Kevin's third child — he is already a dad to son Hendrix and daughter Heaven from his previous marriage to Torrei Hart.

Jason Aldean and wife Brittany Kerr welcomed their first child together in December. "So blessed today to see my little man come into the world," Jason announced on Instagram. "In a year that has been a rollercoaster ride, this is what its all about," he wrote referring to the Las Vegas shooting that took place while he was performing at the Route 91 Harvest Festival back in October. Jason is already a dad to daughters Keeley and Kendyl from his previous marriage.

Sean Maguire and his wife, Tanya, became a family of four in December when their son Leo was born. The Once Upon a Time star, who is already a dad to 2-year-old son Flynn, revealed news on Instagram with a precious photo of little Flynn holding his baby brother. "Thank you to my incredible wife for giving me the best Christmas present imaginable. Leo James Maguire," he captioned it.