Blake looked uber-glamourous in a pair of high-waisted black shorts by Vena Cava and a sleeveless silk blouse, completing the look with her statement blue Chanel 2.55.
Leighton Meester was also spotted on set, wearing a heavily embellished navy rock under a spotty hoodie and comfy UGG boots (we reckon they're just for in-between takes!).
Keep checking back for more news and pics straight from the Gossip Girl season five set...
By Annabelle Spranklen