Gossip Girl's red carpet love-in

Gossip Girl stars hit the red carpet for Penn Badgley premiere

There's clearly a lot of love amongst the Gossip Girl cast - not only are most of the actors coupled-up in real life, they all hit the town last night, to support Dan Humphrey himself, Penn Badgley.

The actor, who dates his celluloid on-again-off-again love interest, Blake Lively, hit the red carpet to promote new flick, The Stepfather, but brought most of his small-screen co-stars along for the ride.

Naturally, the lovely Blake was firmly in supportive girlfriend mode, and while she didn't walk the red carpet with her man, she happily posed for pics after the film.

Effortlessly gorgeous, she rocked wet-look leggings, an oversized blazer and studded courts.

But she wasn't the only Gossip Girl. Badgley's GG sibling, Taylor Momsen worked her typical rock chick gothic heroine look, in lace tights and a leather bandeau dress, while his on-screen BFF, Jessica Szohr, wrapped up in a grey coat and skinny jeans.

Also in attendance was Szohr's real-life beau, Ed Westwick, who plays Chuck Bass, and her TV ex, Chace Crawford.

Even Badgley's on-screen dad, Matthew Settle leant some fatherly support, and posed arm-in-arm with his small screen son.

ALL THE LATEST GOSSIP GIRL ON-SET PICS HERE!