It's a girl!
And the little bundle of joy will take after her parents in more ways than one—her name, which has not yet been revealed—may also start with a K, a source tells E! News.
And aside from following in her parents' footsteps with a K name, she's also already being talked about on Twitter—in a good way!
Her parents' famous pals were excited to share their well wishes for the li'l bundle of joy via Twitter. Celeb pals like Russell Simmons and Patti Stanger took to the social media site to send their love.
Simmons tweeted: "There is no greater gift in life than a child's laughter! congrats to Kim And Kanye." And relationship expert Stanger added: "Mazel tov @KimKardashian on the birth of ur baby girl. So happy for u n ur family, including uncle @JonathanCheban ! Xo"
Rapper Nas tweeted: "Congrats to Kanye 4 the birth of his daughter today too! To my bros w/ daughters!!"
Even DJ Pauly D shared some love, tweeting: "Congrats @KimKardashian And @kanyewest On The Birth Of Your Baby Girl !!!!!"
Comedian Mike Epps shared: "Congrats to @kanyewest and @KimKardashian on the birth of their daughter."
Former Bachelor Jason Mesnick, also a father, joined in on sharing the love as well, tweeting, along with a pic of his baby girl, "Check out Riley's reaction to the big news of the day...That is Kim Kardashian being a mom."