Blair gives son Arthur a boost in N.Y.C. Plus: Chace Crawford, Justin Bieber, Kristen Stewart and more
Credit: Dave M. Benett/WireImage
Published: Wednesday Oct 24, 2012 | 05:00 PM EDT
More from PEOPLE
- The 10 Can't-Miss Photos of the Week
- Sharon Osbourne on Daughter Kelly Leaving Fashion Police: 'You Can Never Be Bought'
- Lupita Nyong'o's Oscars Dress Reportedly Returned to Los Angeles Hotel
- One Dad, Four Newborns: Father of Quadruplets Cares for Babies After Wife's Tragic Death