Rachel Zoe Rodger Berman wedding nicole richie dress black tuxedo

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And don't forget about Fall Out Boy Pete Wentz!

Lionel Richie's Beverly Hills estate was jam-packed with celebs last night (not to mention an elephant!) to celebrate the nuptials between Nicole Richie and Joel Madden - congrats to the couple for finally getting hitched!

Aside from Wentz, celeb guests included Gwen Stefani and Gavin Rossdale, Khloe Kardashian and mom Kris Jenner, Rachel Zoe and her hubby, Samantha Ronson, Ellen Pompeo and, of course, Joel's bro Benji.

Khloe even Tweeted last night, "I love weddings!" The happy couple had some 140 people at their blessed event; Nicole's friend Masha Gordon served as maid of honor while young Harlow was the flower girl. How cute!