Justin Timberlake and Jessica Biel welcomed their little guy in April. "It is the most insanely amazing, wonderful, unbelievable thing to ever happen to you," the 34-year-old singer told Jimmy Fallon in September, just five months into fatherhood.
Despite serious pregnancy complications, Kim Kardashian and her husband, Kanye West, welcomed their second child, son Saint West, on Dec. 5. The night before she gave birth, Kim posted a bathroom selfie of her bare baby bump, writing, "Ready whenever you are lol."
Model Brooklyn Decker and her husband, retired professional tennis player Andy Roddick, welcomed their son on Sept. 20. The two have candidly shared behind-the-scenes moments of adjusting to parenthood on Instagram.
Kristin Cavallari and her husband, Chicago Bears quarterback Jay Cutler, welcomed their third child on Nov. 23 -- a girl! "I'm just excited to have a little mini me and now I have someone that I can give all of my stuff to, which is great," the reality star told ET at the time. "I didn't think I would be a big 'pink' girl but everything is pink. There's a chandelier. I'm getting all the pink and purple clothes."
Ice-T (real name: Tracy Marrow) and his wife Coco Austin had their first child together on Nov. 28. "Surprise!!! Look who came early!! Welcome the new arrival of Chanel Nicole. A beautiful healthy 5.7 pound and 18 inch baby girl. Ice and I are so proud! I cried while she was coming out I was so excited to meet her!" Austin captioned a close-up snap of her newborn.
Naya Rivera and husband Ryan Dorsey welcomed their baby boy on Sept. 17. Before giving birth, Rivera candidly documented her pregnancy for fans, including posing naked for a Yahoo! photoshoot and even dishing on the difficulties of pregnancy sex.
Brandon Jenner and wife, Leah, became parents to a little girl on July 22. "It has without a doubt been the most profoundly beautiful time in my life but also emotionally, spiritually and physically challenging too," Leah wrote on Facebook, announcing the birth. "I am so grateful for every second of it. Brandon and I are taking care of our healthy, little baby girl, Eva James Jenner."
8. Frances Harper Wyle
Noah Wyle and wife Sara Wells welcomed a daughter on June 22. She joins big sister Auden and big brother Owen, Noah's children from a previous marriage.
Independence Day star Jeff Goldblum became a parent for the first time at age 62 when his 32-year-old wife, Emilie Livingston gave birth to their son on... Independence Day! "We're so excited to share the wonderful news of the birth of our son, Charlie Ocean Goldblum, born on the 4th of July," Goldblum announced via Facebook three days later.
Facebook billionaire Mark Zuckerberg and his wife, Priscilla Chan, announced the birth of their first child on Dec. 1. Their daughter came just in time to get in on the mania surrounding Star Wars: The Force Awakens. "The force is strong with this one," Zuckerberg captioned a picture of his daughter wrapped in Jedi garb.
Dwayne "The Rock" Johnson became a dad for the second time when longtime girlfriend, Lauren Hashian, gave birth to a beautiful baby girl on Dec. 16. "Kinda crazy, but in this cool and powerful skin to skin bonding moment with my newborn baby Jasmine, I had just one wish I asked the universe," the actor posted on Facebook. "Give me the strength to be a better man today than I was yesterday. If I can accomplish that, then I'd have a good shot at being a great father." Jasmine joins 14-year-old half-sister Simone, Johnson's daughter with ex-wife Dany Garcia.