Happy Father's Day to all the dads out there. While Sunday is a special day for families across the country, this weekend also marks a milestone for many famous fathers.

Chris Hemsworth, Jack Osbourne and Tony Romo are just some of the dads celebrating the holiday for the first time as new fathers and we bet they are spending the special day with their little ones. Other stars are dads-to-be, and they certainly should be celebrating their upcoming jump into parenthood this weekend as well!

Proud new papa Jay-Z will hopefully be taking some time with his baby girl, Blue Ivy, and we already know he thinks his darling daughter is going to be one spoiled -- and very loved -- child.

"I imagine I'll take things I learned from my mom and things I've learned from raising my nephews and apply that," he said on Oprah's "Master Class: Special Edition." "Then at the end of the day, I just know I'll probably have the worst, spoiled little kid ever."

Check out photos of new celebrity dads below:

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  • Matthew Bellamy

    Muse rocker Matthew Bellamy <a href="http://www.huffingtonpost.com/2011/07/10/kate-hudson-gives-birth-to-son_n_894104.html?" target="_hplink">became a dad for the first time</a> when his fiance, actress Kate Hudson, welcomed their son, Bingham Hawn Bellamy, on July 9, 2011. (FameFlynet)

  • Sam Trammell

    "True Blood" actor Sam Trammell and his longtime love Missy Yager had not one, but two little ones last year. <a href="http://www.people.com/people/article/0,,20517353,00.html" target="_hplink">The couple welcomed twin boys on August 9, 2011.</a> (Getty)

  • Benicio Del Toro

    Actor Benicio Del Toro became a first-time dad in 2011 when Kimberly Stewart, daughter of singer Rod Stewart,<a href="http://www.huffingtonpost.com/2011/08/22/kimberly-stewart-daughter_n_932842.html?" target="_hplink"> welcomed a baby girl name Delilah on August 21, 2011.</a> (Getty)

  • Mike Myers

    Mike Myers is a dad! The actor and comedian <a href="http://celebritybabies.people.com/2011/09/29/mike-myers-welcomes-son-spike/" target="_hplink">welcomed a son, Spike, with his wife, Kelly Tisdale</a>, in September 2011. We're sure the funnyman already has his little one giggling up a storm!

  • Hugh Grant

    Surprise! Hugh Grant <a href="http://www.huffingtonpost.com/2011/11/01/hugh-grant-baby-girl_n_1069611.html" target="_hplink">became a dad to a baby girl</a>, Tabitha, in October 2011. "I'm absolutely thrilled to have had her, I really am. And I feel [like] a better person," <a href="http://www.huffingtonpost.com/2012/03/19/hugh-grant-baby-tabitha_n_1364611.html" target="_hplink">he told the U.K.'s <em>The Guardian</em> in March.</a>

  • Curtis Stone

    Celebrity chef Curtis Stone <a href="http://www.people.com/people/article/0,,20544756,00.html" target="_hplink">welcomed his first baby</a>, a boy named Hudson, with actress Lindsay Price in November 2011. "Lindsay and I are so excited to welcome our sweet little baby boy into the world. It feels so great to be a dad!!!!" <a href="https://twitter.com/curtis_stone/status/138782563660603393" target="_hplink">Stone tweeted on Nov. 21.</a>

  • Jay-Z

    It's official -- Jay-Z is a proud papa. The rapper and his wife, singer Beyonce, <a href="http://www.huffingtonpost.com/2012/01/08/beyonce-jay-z-baby-girl_n_1174443.html?" target="_hplink">welcomed a baby girl named Blue Ivy Carter</a> on January 7. Two days after becoming a dad, Jay-Z r<a href="http://www.huffingtonpost.com/2012/01/09/glory-jay-zs-song-for-daughter-blue-ivy_n_1194569.html?" target="_hplink">eleased a song about his darling daughter</a>, called "Glory," in which he raps: "Maybe I paint the sky blue/My greatest creation was you."

  • Jared Padalecki

    "Supernatural" actor Jared Padalecki is celebrating his first Father's Day as a dad this year. He and his wive, Genevieve Cortese, <a href="http://celebritybabies.people.com/2012/03/21/jared-padalecki-welcomes-son-thomas-colton/" target="_hplink">became the proud parents of Thomas Colton</a> on March 19.

  • Tony Romo

    Break out the pint-size footballs because the Dallas Cowboys quarterback welcomed his first child this spring. His wife, Candice Crawford, <a href="http://celebritybabies.people.com/2012/04/10/tony-romo-candice-crawford-welcome-son-hawkins/" target="_hplink">gave birth to a baby boy named Hawkins</a> on April 9. "Hawkins Crawford Romo is now a part of the Dallas Cowboys family," their rep said when announcing the happy news.

  • Michael Weatherly

    "NCIS" star Michael Weatherly certainly has his hands full these days. The actor and his wife, Bojana Jankovic, welcomed daughter Olivia on April 10, and Weatherly tweeted the happy news to his followers. "Gentlefolk of Twitter and elsewhere, Bojana and I are proud to announce <a href="https://twitter.com/m_weatherly/status/190110850693070849" target="_hplink">the arrival yesterday of OLIVIA WEATHERLY!</a> ‪#SpecialAgentWeatherly‬."

  • Joe Nichols

    After years of trying to start a family, country crooner Joe Nichols and his wife, Heather, welcomed their daughter, Dylan River Nichols, into the world on April 17. "Joe and I have prayed for this day for such a long time," <a href="http://celebritybabies.people.com/2012/04/18/joe-nichols-welcomes-daughter-dylan-river/" target="_hplink">Heather told <em>People</em>.</a> "We are truly blessed."

  • Jack Osbourne

    Jack Osbourne is all grown up -- and a dad! The star and his fiance, Lisa Stelly, became <a href="http://celebritybabies.people.com/2012/04/24/jack-osbourne-lisa-stelly-welcome-daughter-pearl-clementine/" target="_hplink">proud parents to daughter Pearl Clementine</a> on April 24.

  • J.R. Martinez

    "Dancing with the Stars" champ and actor J.R. Martinez has even more to celebrate this year. Not only did he bring home the mirror ball trophy on the dancing show, but he and his longtime girlfriend, Diana Gonzalez-Jones, are now parents to a <a href="http://www.huffingtonpost.com/2012/05/03/lauryn-anabelle-martinez-jr-martinez-baby-girl_n_1473600.html" target="_hplink">baby girl named Lauryn Annabelle</a>, who was born on May 2.

  • Simon Helberg

    "The Big Bang Theory" actor Simon Helberg has a brand-new project: a baby! He and his wife Jocelyn Towne <a href="http://www.usmagazine.com/celebrity-moms/news/simon-helberg-wife-jocelyn-towne-welcome-baby-daughter-adeline-2012145" target="_hplink">welcomed daughter Adeline on May 8.</a>

  • Chris Hemsworth

    It's been a whirlwind couple of weeks for Chris Hemsworth. The "Avengers" and "Snow White and the Huntsman" star and wife Elsa Pataky <a href="http://www.people.com/people/article/0,,20595188,00.html" target="_hplink">welcomed daughter India</a> on May 11. "Just her being here," <a href="http://www.usmagazine.com/celebrity-moms/news/chris-hemsworth-fatherhood-is-wonderful-201256" target="_hplink">he told <em>Us Weekly</em> about his favorite part of fatherhood</a> so far. "It's certainly taken all my focus and attention away from work -- or what have you -- but that's the main thing on my brain right now. It's wonderful."

  • Caleb Followill

    Kings of Leon singer Caleb Followill and his wife, Victoria's Secret model Lily Aldridge, will <a href="http://www.huffingtonpost.com/2011/12/29/lily-aldridge-pregnant-photos_n_1174595.html?" target="_hplink">welcome their first child</a> in 2012.

  • Brandon Routh

    "Superman Returns" star Brandon Routh is preparing for his next role as a dad! He and his wife, "Parenthood" actress Courtney Ford, <a href="http://celebritybabies.people.com/2012/03/14/brandon-routh-courtney-ford-expecting-first-child/" target="_hplink">are expecting their first child together.</a>

  • Bill Rancic

    Finally, some wonderful news for Giuliana and Bill Rancic! The couple <a href="http://www.huffingtonpost.com/2012/04/23/giuliana-rancic-baby-surrogate_n_1445166.html?" target="_hplink">is expecting their first child together</a>, via surrogate, later this year.

  • Josh Lucas

    Josh Lucas is a newly married man, and now he's going to be a dad! The "J. Edgar" actor and his bride, Jessica, <a href="http://www.people.com/people/article/0,,20579740,00.html" target="_hplink">are expecting their first child together this year.</a>

  • Nick Lachey

    Baby news for Nick Lachey! The former 98 Degrees singer announced on "Live! With Kelly" that he and wife, Vanessa Lachey, (nee Minnillo) are <a href="http://www.huffingtonpost.com/2012/03/05/vanessa-minnillo-pregnant-nick-lachey_n_1317439.html?ref=celebrity" target="_hplink">expecting their first baby</a> in late summer 2012.

  • A.J. McLean

    Backstreet Boy A.J. McLean is going to be a dad! The singer and his wife, Rochelle, are expecting a baby in 2012 <a href="http://www.huffingtonpost.com/2012/04/30/backstreet-boy-aj-mclean-baby-rochelle-deanna_n_1463958.html?" target="_hplink">and announced the happy news via YouTube in April.</a>

  • Chris Pratt

    Exciting news for Anna Faris and Chris Pratt! The couple, who married in 2009, <a href="http://celebritybabies.people.com/2012/05/09/anna-faris-chris-pratt-expecting-first-child/" target="_hplink">are expecting their first child this fall.</a>

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