This afternoon, Smash cast members Christian Borle, Debra Messing, and Anjelica Huston filmed a scene from the drama's upcoming second season outside of Broadway's Lyceum Theatre (which is doubling as the fictional Lily Hayes Theatre).

The filming barely stopped traffic on the busy street, but it was the exterior signage that made us do a double-take.

As the cameras rolled, we realized that window box posters revealed what could be major plot points for the second season.

You'll find more behind the scenes goodness [MAJOR POTENTIAL SPOILERS], as well as the appearance of scarves, in our photo gallery below.