Here's a mystery: Can the 20 million or so viewers who tune in to CSI: Crime Scene Investigation each week be persuaded to go veggie? Tough to say. But Jorja Fox, who plays Sara Sidle on the hit CBS show, is on the case to change our eating habits as part of PETA's new Investigate Vegetarianism ad campaign.

Reports that Nick Lachey would pop the question to Vanessa Minnillo yesterday were greatly exaggerated. But that doesn't mean there wasn't partying going on later in the night. The lovebirds—who both have birthdays today; he's 33, she's 26—threw themselves a bash at Social in Hollywood.