Rob Lowe Nannygate update! In addition to suing his nanny, Laura Boyce, for extortion, Rob and his wife Sheryl are also suing their former chef for getting it on with "third parties" in their marital bed and pilfering their medicine cabinet for his friends. So hard to find good help these days! • Angelina took Pax and Maddox to the Air & Space Museum yesterday morning. The boys toured Skylab! How educational. • Scary Spice Mel B. debuted her new clothing line, "Catty Couture" in L.A. yesterday. With all those animal prints, it kind of looks like Roberto Cavalli got drunk and barfed up these clothes. [TMZ, Us, Perez]

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