Blake Lively, Leighton Meester, and Ed Westwick were snapped up by the paparazzi on the set of Gossip Girl recently, donning some appropriate attire for the cold weather—both on and off set.

In one picture (seen after the jump), Meester is actually caught red-handed wearing Ugg boots! A Gossip Girl star wearing UGG BOOTS?! What on Earth was she (or her stylist) thinking? She ought to be fined.

Lively, on the other hand, rivals Emma Watson with her Burberry wear. Also, did Westwick and Lively cutely plan the motorcycle jackets together?