Carin Kingsland and Mark McGrath at Lavo.

Saturday night, Mark McGrath celebrated his birthday at Lavo at the Palazzo. The lead singer of Sugar Ray and current contestant on “The Celebrity Apprentice,” who turned 43 on March 15, was joined by friends and fiancé Carin Kingsland. The group enjoyed a dinner of signature dishes at the Italian eatery before heading upstairs to the nightclub, where they sat at a VIP table on the dance floor.

The super friendly McGrath was surprised with a birthday cake from Gimme Some Sugar in the shape of a shamrock. DJ Skratchy played his hit, “Fly,” and the crowd sang along. The couple, who welcomed twins almost one year ago, danced the night away, enjoying an adult night out with their friends in Vegas.

Also celebrating birthdays at Lavo on Saturday were Kathy Hilton and her niece Whitney Davis, who turned 21 earlier in the week. The guests of honor where joined by Kim Richards from “The Real Housewives of Beverly Hills,” who is Kathy’s sister and Whitney’s mom. Also joining them in the private dining room were Kathy’s husband Rick and their daughter Nicky, as well as Whitney’s sister Brooke, along with Brandon Davis and a large group of friends.

Whitney ordered a round of shots for the table, and then blew out a candle on a dish of birthday desserts. She thanked the table for coming and then Kim echoed the thought, beaming at her daughter. After dinner the group headed to Tao Nightclub at the Venetian, where they were surprised with two more birthday cakes as they partied the night away.

Click on the photos below to enlarge.

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