Nicole Richie and Joel Madden: Adding to the Family!

Heading into the Xtreme Martial Arts World Headquarters, Nicole Richie and Joel Madden took their young daughter Harlow to join in on Cruz Beckham's 4th birthday party on Saturday (February 21).

With Joel carrying Harlow inside before heading back to the car for an armful of presents, the cute couple joined guests including Victoria Beckham and family, as well as "Desperate Housewives" star Eva Longoria.

Meanwhile, in bigger and better news, Joel took to his blog last night to announce that he and Nicole are adding to the family!

He wrote an entry titled “Better than winning an OSCAR!" which read, “What’s better than winning an Oscar? I am so happy to tell everyone that Harlow is going to be a big sister! God has truly blessed my family. Hope your (sic) all feeling as good as i am right now………”

Gossip Girls / Dailyfill.com

Enjoy the pictures of Nicole Richie and Joel Madden out with Harlow at Cruz's party (February 21).