Bill Cosby celebrates a "100th" birthday, an ET bike flash mob invades the LA Film Festival, and Brett Ratner, Jeffrey Katzenberg, Shailene Woodley, Oliver Stone, Taylor Kitsch, Carl Reiner, and the suddenly ubiquitous Warren Beatty are all super-social this week.
Party Photos: Backstage and On the Floor at Critics Choice TV Awards (Slideshow)
Mikey Glazer is always on the list. He’s been covering events since his kindergarten’s Valentine’s Day cookie party, graduating to become a nightly insider on Hollywood party circuit. He has contributed from behind the velvet rope for E! Entertainment Radio, US Weekly, and created the popular live celebrity sightings twitter @CelebSightings. Please send invitations here.