The Greatest Show of Our Time was filming yesterday around Irving Place, and pictures show Blair and Chuck cavorting with a bosomy blonde who is definitely not Serena. This, to us, can mean one of several things:

1. Blake Lively's hair extensions have given her chronic neck strain, rendering her unable to hold her head up for long periods of time, and therefore they are using a body double for season three.

2. The producers are going to pull a Becky From Roseanne and introduce a new actress, probably by way of a plotline in which Serena gets major work done over the summer.

3. Ed Westwick has hired a bosomy blonde assistant.