There's a rumor going round today that Billy Baldwin is set to play Serena Van Der Woodsen's mysterious father on Gossip Girl. This means that in complicated TV way, Serena Van Der Woodsen might be Jack Donaghy's niece? Awesome.-

What do you think of the casting choice? Is Billy Baldwin debonnaire enough to play Serena's modelizing dad?

While you ponder that, here are some pictures of Taylor Momsen, Chace Crawford, Penn Badgley, Sebastian Stan and Connor Paolo on set in the UES. Taylor is looking, dare we say it, relatively healthy and respectable in these pictures, good for her!

Chace Crawford, Taylor Momsen, Connor Paolo

Chace Crawford, Sebastian Stan        Penn Badgley

Connor Paolo, Penn Badlgey            Chace Crawford

[All images via Getty]