Nicole Richie's Star-Studded Birthday Party (PHOTOS)
The bash went a little past midnight, and although Joel and Nicole's little ones were at home, they were a big part of the video montage put together by some of Richie's closest pals.
"Their life doesn't stop when it's my birthday. They have school and ballet and this and that. I was just a mom, which I'm totally happy being," Nic told the LA Times. "My son just had his birthday, and they just don't care. They're birthdayed out! We just had the cake and the song and the whole bit."
Sounds like a blast!