VIDEO: Sneak Peek - 'Portrait of a Lady Alexander' Episode of GOSSIP GIRL

On this Monday's episode of The CW drama series GOSSIP GIRL titled 'Portrait of a Lady Alexander,' Chuck's continued investigation into his father's dealings leads him to an unlikely event with Manhattan's elite, where he hopes to find the one person who can tell him the truth about Bart (guest star Robert John Burke).

Serena and Steven (guest star Barry Watson) decide to reveal their romantic histories so they aren't surprised by anything, but neither was prepared for what they uncovered. With The Spectator in jeopardy after Dan decided to publish elsewhere, Nate must make a difficult decision to keep it in business. Meanwhile, Georgina (guest star Michelle Trachtenberg) pushes Dan to choose a worthy person to date to boost his image, but he finds himself drawn in a different direction. Get a sneak peek below!

Leighton Meester, Kelly Rutherford, Matthew Settle and Kaylee DeFer also star. Sofia Black-D'Elia guest stars. Matt Whitney directed the episode written by Andy Wolk.

GOSSIP GIRL airs Monday, 9/8c on The CW