Radar obsessively tracks the boldface names in the country's top gossip columns—Rush & Molloy, Cindy Adams, Page Six, Liz Smith, Gatecrasher, and MSNBC's The Scoop ...

Quentin Tarantino: Two mentions (Gatecrasher, Page Six). Did Quentin's Grindhouse codirector Robert Rodriguez leave his wife for Rose McGowan during the filming of the movie? We know the alleged home wrecker has questionable taste since she used to date Marilyn Manson and "Men's Health stud Dave Zinczenko," says Page Six.

Denise Rich: Two mentions (Gatecrasher, Page Six). Old school socialite Denise Rich was out and about this weekend: On Friday she graced a fundraiser at the Pierre to listen to Patti LaBelle perform, and then on Saturday she was on hand at the Rainbow Room for Fairchild CEO Jeffrey J. Steiner's 70th birthday party.

Karl Lagerfeld: Two mentions (Page Six, Cindy Adams). The skinny fashionisto has a cameo in the French film The Valet, a comedy about celebrity that closed the New York Film Festival.

Britney Spears: Two mentions (Rush & Molloy, The Scoop). Desperate Housewives' resident hunk Jesse Metcalfe "pulled a Britney" on Saturday when he ditched rehab to shop. Meanwhile, Avril Lavigne has no sympathy for Brit's battle with the bottle.