Blair enjoys an evening in New York with her 3-month-old son Arthur. Plus: Kristin Cavallari, Robert Pattinson, Taylor Swift and more
Credit: Kevin Kane/FilmMagic
Published: Thursday Nov 10, 2011 | 05:00 PM EST
More from PEOPLE
- Corbin Bleu Is Married! The High School Musical Alum Ties the Knot!
- Read the Cover Story: JFK Jr.: The John We Loved
- VIDEO: Why Amy Winehouse's Mom Has No Regrets: 'I Couldn't Have Done Anything Different'
- Tom Hiddleston Attends Comic-Con After Trip Down Under with Taylor Swift
- WATCH AND SHOP: This Self Tanner Works Instantly (Then Lasts for Weeks!)