Leighton Meester's "Gossip Girl" Workday

Leighton Meester was spotted on set in New York City.

The actress joined co-star, Penn Badgley, while filming scenes for her hit show, "Gossip Girl".

Leighton, Blake & Penn: Busy On The Set

The cast of "Gossip Girl" were spotted hard at work in New York City.

Leighton Meester, Blake Lively & Penn Badgley all filmed scenes for their hit CW show.