From rap royalty Kanye West  and real royalty Prince William to funny guys Jimmy Fallon  and Jason Sudeikis, there are a handful of famous men who celebrated their very first Father's Day  this Sunday. Keep reading to see which stars welcomed new additions  in time for the fun, and check out our cute roundup of celebrity dads with their little ones  on social media.
Jason became a dad for the first time when he and fiancée Olivia Wilde  welcomed their son, Otis, in April 2014.
Jimmy and his wife, Nancy Juvonen, welcomed their daughter, Winnie, via surrogate in July 2013. Just before Father's Day , Jimmy and Winnie covered People magazine together !
In October 2013, the Arrow star and his wife, Cassandra Jean, celebrated the birth of their daughter, Mavi.
Source: Instagram user amelladventures 
The Duke of Cambridge became the proud father of Prince George Alexander Louis in July 2013.
Kanye and his now-wife, Kim Kardashian , welcomed daughter North to the world in July 2013.
Source: Instagram user kimkardashian 
John became a dad for the first time in February 2014, when he and wife Emily Blunt  welcomed daughter Hazel.
Olivier became a father in October 2013 when his wife, Halle Berry , gave birth to their son, Maceo.
Josh and his wife, fellow Once Upon a Time star Ginnifer Goodwin , welcomed their son, Oliver, in May 2014.
Jason became a dad in February 2014 when his wife, Jenny Mollen, gave birth to their son, Sid.
Josh and his wife, Fergie , welcomed their baby boy, Axl Jack Duhamel, in August 2013.
Source: Instagram user joshduhamel 
In February 2014, Simon and girlfriend Lauren Silverman became parents to son Eric.
The former San Francisco 49ers cornerback, who is married to Kerry Washington, welcomed his daughter, Isabelle, in April 2014.
Kevin and his wife, Danielle, welcomed daughter Alena in February 2014.
Source: Instagram user kevinjonas 
The rapper and his fiancée, Ciara, brought their baby boy, Future Zahir Wilburn, into the world in May 2014.
The Canadian crooner and his wife, Luisana Lopilato, welcomed their son, Noah, in August 2013.
Source: Instagram user michaelbuble 
Justin's wife, Lia Smith, gave birth to the couple's daughter, Asa, in April 2014.