After a highly fashionable baby shower a few weeks ago - themed as Audrey Hepburn's "Breakfast at Tiffany's" - Kourtney Kardashian's new baby has finally been born: a baby boy who shares the birthday of his oldest brother, Mason!

Really "Keeping up with the Kardashians" has been getting harder and harder as time goes by, between Kris' new single life, Kim and Kanye's extravagant outings, Kendall Jenner's fast-growing modeling career and Kourtney Kardashian's new baby - nonetheless, audiences around the world are always waiting for more news of the Kardashian-Jenner clan that has produced some of the most famous women in the globe!

The latest news regarding the Kardashian family is nothing but extremely happy: Kourtney Kardashian's new baby! After the reality television star first announced she and longtime boyfriend Scott Disick were welcoming their third child into the world, it's been a true frenzy over the details!

According to E! Online, Kourtney Kardashian's new baby was born last Sunday, on December 14, exactly five years to the date her oldest son, Mason, was born in back in 2009 - an event that was fully covered in that season of "Keeping Up with the Kardashians."

Even though the family was welcoming Kourtney Kardashian's new baby, the show must go on so, that very day, a new episode of "Kourtney & Khloe Take The Hamptons" was playing on television! Even though those are obviously recorded before they're aired, it can definitely be stated that Kourtney's a mom to be reckoned with, working non-stop for her fans!

While the name of the newest addition to the Kardashian home has yet to be released, Hollywood Life reports exclusively that the couple is planning on giving the baby boy a name to "honor their fathers," as a source told the outlet that the name Jeffrey Robert, Scott's dad, was a serious contender for the name. 

"Scott really wants that more than Kourtney," the source said to Hollywood Life. "Kourtney actually wants a more unique first name but may compromise and have Jeffrey as the middle name to make Scott happy as well."

Big cheers for Kourtney Kardashian's new baby - and for big bro Mason who got the best birthday of all!