According to Page Six, Leighton Meester made a scene at Philippe in East Hampton while celebrating a friend’s birthday Saturday night. “She was rallying her friends to out-scream the ‘Happy Birthday’ song of a nearby table of girls,” says a diner. “Both tables started screaming obnoxiously back and forth at one another until Leighton finally stood up on the table and started dancing.” Dining at other tables were NBC honcho Jeff Zucker, Blackstone billionaire Steve Schwarzman, and former SEC chairman Arthur Levitt.