The proud parents enjoyed a date night at the 'Parks and Recreation' alum's big bash.
Cameron Diaz and Benji Madden enjoyed a mom and dad date night over the weekend, stepping out for Rob Lowe's 60th birthday bash.
The cute couple were among a slew of A-listers who turned up for the 9-1-1: Lone Star actor's celebration, held in Santa Barbara, California, on Saturday.
The fun birthday party came just a day after the couple publicly announced the arrival of their second child together -- a son named Cardinal.
As seen in photos obtained by People, Diaz, 51, sported a long black jacket over a black top, while carrying a black handbag as well as a wrapped brown box and some gorgeous flowering branches, which appeared to be part of a gift.
Meanwhile, Madden, 45, rocked a dark gray denim jacket, black jeans and a black ball cap.
The new parents attended the star-studded birthday extravaganza alongside Jennifer Aniston, Robert Downey Jr., Gwyneth Paltrow, Chris Pratt and Katherine Schwarzenegger, Amy Poehler, Adam Levine, Behati Prinsloo, Ellen DeGeneres, Portia Di Rossi, Zoe Saldana, Katy Perry, Orlando Bloom and Kevin Costner.
On Friday, Diaz and Madden revealed that they'd welcomed a second child when they posted a photo of a piece of artwork, which read, "A little bird whispered to me."
In the caption, Madden revealed the news, which came as a surprise to fans as he and Diaz hadn't previously shared that they were expecting.
"We are blessed and excited to announce the birth of our Son, Cardinal Madden. He is awesome and we are all so happy he is here!" Madden wrote. "For the kids safety and privacy we won't be posting any pictures- but he's a really cute. We are feeling so blessed and grateful. Sending much love from our fam to yours. Best wishes and Good Afternoon!!"
The pair are famously private when it comes to their children, largely keeping them out of the public eye entirely.
When they announced the birth of their first child, a daughter named Raddix, in 2019, they did so with a similar Instagram post.
"We are so happy, blessed and grateful to begin this new decade by announcing the birth of our daughter, Raddix Madden," Diaz wrote. "She has instantly captured our hearts and completed our family."
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