517 The Princess Dowry

Blair thinks Cyrus  may have found a potential loophole in her prenup. Chuck and Georgina partner up in a scheme, but it has an unpredictable outcome. Meanwhile, a family crisis brings William van der Woodsen back to the Upper East Side.

Joanie Madden - Boat to Bofin

The Cranberries - Dreams

Black 47 - Izzy's Irish Rose

Among Savages - New York City

Black 47 -  New York, NY 10009

Charlotte Gainsbourg - Paradisco

The Pogues - Sally Maclennane

Wye Oak - Strangers

Joanie Madden - The Cat's Meow

M83 - We Own The Sky

XOXO

516 Cross Rhodes

Dan feels honored when he learns that Upright Citizen's Brigade is performing excerpts from his book, Inside. Blair tries to prove Serena's suspicions wrong in order to save their friendship. On her way out of town, Ivy ends up on a collision course with the van der Woodsens.

Little Comets - Dancing Song

Feist - Graveyard

Jet Horns (AKA Jon Von Letscher) - Oscar Enzina

XOXO

515 Crazy, Cupid, Love

It's Valentine's Day on the Upper East Side and Blair can't resist playing cupid for someone she loves. Georgina is intent on stirring up more drama, so she decides to crash Nate's Valentine's Day party. Meanwhile, Serena is shocked by something she witnesses at the party.

The Kills - Baby Says

St. Vincent - Cheerleader

Free Blood - Cleaning House

St. Vincent - Cruel

Will.i.am - I Got It From My Mama

Tag Team - Let's Get This Party Started Right

Kina Grannis - The One You Say Goodnight To
The Virgins - Rich Girls
St. Vincent - The Party
Kina Grannis - Valentine

XOXO

514 The Backup Dan

Blair must make a difficult decision about her future, the consequences of which could hurt those she loves most. Serena takes the blame for an incident with Gossip Girl in order to protect someone she loves. Georgina smells the scent of scandal and decides to follow its trail.

The Big Pink - Future This

Madonna - Like A Virgin

In Waves - New York City

Joanna James - Try

M83 - Wait

The Temporary Thing - War

XOXO