NICOLE RICHIE splashed out on a surprise party for her ex-fiance DJ AM on Saturday night (01APR06) and spent the evening proclaiming her love for the club star. Richie and managers of Las Vegas, Nevada's trendy Pure nightclub, where DJ AM has a residency, conspired to treat the record spinner to a 33rd birthday to remember. Richie and Avril Lavigne joined the DJ, real name Adam Goldstein, and 100 of his friends and family at the surprise party. An insider says, "Adam thought he'd be working on Saturday night. He quickly found out that he had the night off. Taking his place was his childhood idol, DJ Jazzy Jeff. "Having never seen a set by Jazzy, AM became extremely excited, hugging and kissing Nicole, who stood by his side the entire evening." Richie also made a special toast to her ex, stating, "This is his eighth year of sobriety. I'm so proud of you. You've come so far and I love you so much." The couple called off their engagement in December (05), but rekindled their romance last month (MAR06).