Blair enjoys an evening in New York with her 3-month-old son Arthur. Plus: Kristin Cavallari, Robert Pattinson, Taylor Swift and more
Credit: Jeff Vespa/WireImage
Published: Thursday Nov 10, 2011 | 05:00 PM EST
More from PEOPLE
- How Kenny Chesney Celebrated His 47th Birthday – All Night Long
- Read the Cover Story: At Home with Britney Spears and Her Boys!
- Jeremy Piven Channels Notorious B.I.G. for an Epic Freestyle
- The Winklevoss Twins Will Play Themselves on HBO's Silicon Valley
- Katy Perry Packs How Many Shoes on Her Prismatic Tour?