It's no surprise that a lot of people were invested into Giuliana and Bill Rancic's journey to parenthood, and once the news broke that this adorable couple finally welcomed their bundle their joy, congratulations were in order.
From G's pal Ryan Seacrest to her Fashion Police cohost Joan Rivers, a number of celebs took the time to tweet their well wishes to the new parents.
Ryan Seacrest: "@GiulianaRancic @BillRancic congrats u two! See u in 18 years"
Kelly Osbourne: "thank god for wifi on flights @GiulianaRancic has been keeping me laughing & giving me good advice! I love you G! p.s when can i see Duke?"
Joan Rivers: "THRILLED for @GiulianaRancic and @BillRancic on the birth of their baby boy! She is my extended family and I can't be more excited for them!"
Denise Richards: "Congrats on your baby boy! @GiulianaRancic @BillRancic so happy for u..can't wait to meet him.."
Kris Jenner: "CONGRATS @GiulianaRancic @BillRancic on your Baby Boy Edward Duke! We are SOOO excited for you! What a Blessing! ! We cant wait to meet him!"
Ricki Lake: "Congrats! So happy for them! :)"
Caroline Manzo: "Congrats @GiulianaRancic @BillRancic on arrival of baby Edward Duke Rancic - FANTASTIC NAME"
Catt Sadler: "Welcome to the Mommy Club @GiulianaRancic !!! So happy for you and your family... Sending you lots of love♥?♥"