Ministry of Gossip sightings

Mega-celebs turning up for the grand opening of the Cosmopolitan Las Vegas including Beyoncé, Gwyneth Paltrow with kids Apple and Moses, Cameron Diaz and Alex Rodriguez, Rihanna, Kanye West, Blake Lively, Mark Wahlberg and Rhea Durham, Jennifer Lopez and Marc Anthony, Channing Tatum and Jenna Dewan, and Ashley Olsen and Justin Bartha for inaugural performances from Jay-Z and Coldplay…Kim Kardashian holding court over at Tao’s New Year’s Eve bash…David Arquette hosting a year-end preview of Beecher’s Madhouse before checking into rehab...Brad Pitt and Angelina Jolie taking their brood for a festive dinner at Beverly Hills’ Benihana...Christina Aguilera celebrating her 30th birthday at her Los Angeles home with new beau Matt Rutler and newlyweds Nicole Richie and Joel Madden, complete with personalized bottles of Moët spelling her name in pink glitter.

—Matt Donnelly