Nicole Richie and Joel Madden tied the knot in LA yesterday after weeks of wedding speculation. The couple exchanged their "I Dos" at her father Lionel Richie's estate and their friend Rev Run officiated the ceremony. There were approximately 150 guests in attendance, including Samantha Ronson and Khloe Kardashian who twittered, "I love weddings!" Nicole and Joel's daughter Harlow was the flower girl and after much deliberation, the bride wore Marchesa. At one point an elephant was seen being led into the party all decked out in a festive headdress. All in all it sounds like an amazing night — congratulations to new husband and wife Joel and Nicole!