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.

Blake Lively & Penn Badley Work On Gossip Girl

Blake Lively and Penn Badgley were spotted on the set of “Gossip Girl” in New York City.

The CW costars braved the chilly conditions with coats and warm beverages as they shot scenes for an upcoming episode.

Blake Lively & Penn Badgley Call It Quits

Penn Badgley and Blake Lively have called it quits on their relationship.

A rep for the CW stars told press that the romance came to a halt back in September, though they tried to keep it quiet.

An inside source explained, “They’re professionals. They’re still good friends and hang out on the set. They kept this news to themselves for awhile.”

Blake and Penn’s “Gossip Girl” costars supposedly didn’t know either. "Nobody on set had any idea. They're really just private."

Blake, Leighton & Penn: Gossip Girl Workers

Blake Lively and Leighton Meester were spotted getting to work with Penn Badgley in New York City.

The three co-stars were busy shooting scenes for ther hit CW tv show while the photographers looked on.

Blake Lively & Penn Badgley: Chowder House Couple

Blake Lively and Penn Badgley were spotted taking a lunch break in Uptown, Manhattan.

The co-star couple popped into Ed's Chowder House for some tasty seafood cuisine before getting back to work.

Emma Stone & Penn Badgley Premiere Easy A At TIFF!

Emma Stone and Penn Badgley were side-by-side at Isabel Bader Theatre in Toronto, Canada.

The "Rocker" chick and "Gossip Girl" actor were in town for the Toronto International Film Festival premiere of their new movie "Easy A".

Blake Lively & Penn Badgley: Gossip Girl Pair

Blake Lively was spotted gearing up for "Gossip Girl" filming at the Standard Hotel in New York City

Joined by her co-star boyfriend Penn Badgley, the pair hit the trailers before delving into the day's workload.

Gossip Girl Season 4 Trailer!

Blake Lively & Penn Badgley: Gossip Girl Lovers

Blake Lively and Penn Badgely were spotted enjoying a romantic stroll through Central Park in New York City.

Also stopping for a healthy green lunch, the real life couple happened to be filming scenes for the upcoming season of "Gossip Girl".

Blake Lively & Penn Badgley: New York City Couple

Blake Lively and Penn Badgley were spotted out in New York City.

The "Gossip Girl" co-stars and real life couple hid from the photographers with a paper bag as they strolled around the city.

Blake Lively & Penn Badgley: NYC Couple

Penn Badgley and Blake Lively were spotted strolling in New York City's Meatpacking District.

The "Gossip Girl" co-star couple walked hand in hand as photoghraphers captured their every move.