Nicole Richie's wild party girl days may be over -- but the reality star turned designer and mom made sure her 30th birthday was unforgettable!
On Wednesday -- her big 3-0 -- Richie gathered a bevy of A-list pals for a fete at a deluxe suite at the Regent Beverly Wilshire in Beverly Hills.
Among the guests at the black-and-white themed party? DJ (and Lindsay Lohan ex) Samantha Ronson arrived with a huge crew, wearing skinny jeans, a black leather jacket and a feathered fedora. Fellow fashionista Ashley Olsen (in a flapper-inspired dress, boyfriend blazer and an oversized backpack) turned up with three pals.
Benji Madden, the twin brother of Richie's husband Joel Madden, arrived solo. Music super-producer Quincy Jones -- who worked with Nicole's father Lionel Richie on his blockbuster 80s hits -- was also on hand for the fete.
"I can't believe the outpour of birthday love I am getting on twitter today!" Richie wrote on her Twitter account Wednesday. "From the bottom of my heart (& the top), THANK YOU SO MUCH!"
Richie also gave a sneak peek of her footwear for the evening: A tottering, spiked stiletto shoe. "Gonna be that kind of night," she teased.
And the married mother of two (Harlow, 3, and Sparrow, 2) stunned for her big night out. Posing in a TwitPic with hubby Madden, 32, Richie wore a vintage, 1920s-inspired red dress, her long blonde locks in a half-bouffant.
"Mr. & Mrs Over The Hill," she joked.