Giuliana Rancic's Baby Boy Edward Duke "Is Adorable," Says Joan Rivers

George Kotsiopoulos and Kimora Lee Simmons also coo over Fashion Police cohost's newborn son

Giuliana and Bill Rancic's baby boy Edward Duke isn't just cute. 

"He's f--king adorable," Joan Rivers told E! News Wednesday night at the Benefit Cosmetics Joan Rangers party in NYC. 

"Oh, he's precious," Joan's daughter, Melissa, gushed. "Giuliana's going to be a great mom."

"I can't wait to see her at games," Melissa added. " I can't wait to see her as like the crazy soccer mom. She always makes fun of me, and I know she is going to be absolutely nuts."

Giuliana's Fashion Police cohost, George Kotsiopoulos, thinks The Duke "is adorable" and is "so incredibly happy for Giuliana. They've been working on this for so long, and I'm just so happy for them."

But George doesn't think G and B should go too crazy with the designer duds just yet. "People want to get like cute little presents with newborns, and it's just like don't," he said. "They wear onesies. They spit up. Get stuff they can wear when they're like 1 or 2. But when they're newborns, they just need constant changes of clothes." 

"Wait until he's 2!" said George.

Kimora Lee Simmons said she knows Giuliana will be "a great mom." And when it comes to fashion tips for The Duke?

"Little boys should be laid-back," she said, adding that she knows Giuliana is "over the moon" about her son.

"She's going to be an amazing mother," Joan added. "Because she really wants the baby. This is not like an inconvenience or a surprise, this is something she wanted for years and she planned on."

"She's very smart," Joan said. "She'll be just great. That baby's a lucky baby." 

Edward Duke Rancic, you are one loved little boy!