Chris Hemsworth, Elsa Pataky & India Rose
Avengers star Chris Hemsworth is quite the fitting new father. With wife Elsa Pataky by his side, he's been photographed cradling his beautiful baby girl, India Rose, in his buff and rather sexy arms numerous times.
Jay-Z & Blue Ivy
Rap boss, entrepreneur and brand-new papa Jay-Z will be celebrating his very first Father's Day this Sunday, after welcoming the most anticipated celebrity baby of the year, Blue Ivy. Mama Beyoncé needs no introduction.
Matt Bellamy, Kate Hudson & Bingham
Talented Muse mastermind Matt Bellamy became a rock star dad almost a year ago. The lead-singing frontman and his love, quirky actress Kate Hudson, celebrated the arrival of his first and her second adorable son, Bingham, last July.
Jack Osbourne & Lisa Stelly
The formerly wild heir to rock-and-roll legend Ozzy Osbourne, Jack Osbourne is no longer crashing Hollywood parties but instead changing diapers. He and fiancée Lisa Stelly welcomed their daughter, Pearl, in April.
Hugh Grant & Tinglan Hong
Following a brief affair with Chinese actress Tinglan Hong, Hugh Grant was knighted into fatherhood with the birth of a baby girl named Tabitha.
Eric Johnson & Jessica Simpson
In what seemed like the longest trial and countdown ever, former NFL cutie Eric Johnson's preggo fiancée, Jessica Simpson, finally gave birth to a healthy baby girl named Maxwell—blessing Mr. Johnson with the title of Dad.
Jared Padalecki & Genevieve Cortese
Dreamy Supernatural star Jared Padalecki and actress wife Genevieve Cortese met their bundle of joy on March 19. The 29-year-old actor was so excited he broke the news to his Twitter followers in a simple tweet: "It's a boy."
Simon Helberg & Jocelyn Towne
Big Bang Theory star Simon Helberg has something to be really geeked about. He and his wife, Jocelyn Towne, welcomed their gem of a daughter, Adeline, on May 8, 2012.
Sam Trammell
True Blood's Sam Trammell has got his hands full. Not only is he balancing one of HBO's most popular series, but he's now the father of not one but two babies. Trammell's long-time girlfriend, actress Missy Yager, delivered twin boys last August.
Tony Romo, Candice Crawford & Hawkins
Another addition to the Dallas Cowboys' family! NFL hottie Tony Romo welcomed his first child, son Hawkins Crawford Romo, in April with wife Candice Crawford.
Mike Myers & Kelly Tisdale
Yeah baby! Mike Myers himself has taken on a new role this time: dad. The groovy actor and his wife, Kelly Tisdale, welcomed their first son, Spike, in September. Quite a radical change for the International Man of Mystery.
J.R. Martinez & Diana Gonzales Jones
Former Dancing with the Stars champion and Iraqi war veteran J.R. Martinez has yet another reason to win. The former U.S. Army soldier became a first-time father when his girlfriend Diana Gonzales Jones gave birth to Lauryn Annabelle in early May.
Glenn Howerton & Jill Latiano
The It's Always Sunny in Philadelphia star has never felt warmer. Glenn Howerton and wife Jill Latiano welcomed their first child, son Miles, in September.
Charlie Day & Mary Elizabeth Ellis
The It's Always Sunny In Philadelphia boys sure were busy last year, as Charlie Day also became a first-time father. Breakout actress and wife Mary Elizabeth Ellis, who played a waitress on the show, delivered Russell Wallace Day in December 2012.
Curtis Stone & Lindsay Price
Aussie chef Curtis Stone and actress Lindsay Price welcomed their son Hudson to the world last November. Much to celebrate for the Stones, as Curtis has also been chosen to cohost Bravo's new television show Around the World in 80 Plates.
Ty Murray & Jewel
Jewel's husband, rodeo champion Ty Murray, is thinking twice about professional bullriding. Well, at least for his son—the first-time father realized the sport is too dangerous to even think about young Kase Townes following in his footsteps. Jewel and Ty welcomed Kase last July.
Mike Comrie & Hilary Duff
After hanging up his skates and retiring from professional ice hockey, Mike Comrie picked up pacifiers instead. Just in time for some serious daddy duty, his wife, actress Hilary Duff, gave birth to Luca Cruz last March.
Caleb Followill & Dixie Pearl
The Kings Of Leon frontman and his model wife Lily Aldridge capture a candid moment of their baby girl outside. "Glad everyone liked our family pic :) She's our angel," Aldridge later tweeted.
Bill Rancic & Duke
The Apprentice star enjoys a walk in the park with his son, Duke. Based on Rancic's love for Chicago and winter attire, it's safe to say Duke may soon become a Bears football fan.