Balthazar Getty birthday story
Credit: instagram / chrissyteigen

Girls just wanna have fun! That was clearly evident on a raucous night out for Balthazar Getty's birthday this weekend, where moms like Kourtney Kardashian, Jenna Dewan Tatum and mom-to-be Chrissy Teigen were letting loose.

The girl crew also included Kardashian family hairstylist Jen Atkins, Minka Kelly, and Kelly Rowland. Naturally, with this photogeninc squad, there were plenty of snaps on Instagram to be had. Though Teigen's hubby John Legend was largely outnumbered, you'll see he seems plenty happy to be the center of the picture (top).

Meanwhile, DJ and actor Getty seemed to be having a ball with his bros, including magician David Blaine. How's that for ringing in 41.